Front of property

Reviews of Hotel Zamek Centrum

4 out of 5
Hotel Zamek Centrum
ul. Panienska 15, Szczecin, Western Pomerania

Reviews

9.6

Exceptional

Rating 10 - Excellent. 250 out of 337 reviews" "
Rating 8 - Good. 77 out of 337 reviews" "
Rating 6 - Okay. 9 out of 337 reviews" "
Rating 4 - Poor. 1 out of 337 reviews" "
Rating 2 - Terrible. 0 out of 337 reviews" "

9.8/10

Cleanliness

9.6/10

Staff & service

9.0/10

Amenities

9.6/10

Property conditions & facilities

9.2/10

Eco-friendliness

Reviews

10/10 Excellent

Annete

Stayed 3 nights in Jan 2024
Response from Lena on Feb 3, 2024
Dear Annete, it was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best.Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Annete

Stayed 2 nights in Nov 2023
Response from Lena on Feb 3, 2024
Dear Annete, it was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best.Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Highly recommended
Very comfortable and spacious rooms in a great location next to the old town and lots of restaurants. Always consistent and impeccable service from every employee and delicious, cooked to order breakfast.
Stayed 4 nights in Oct 2023
Response from Lena on Oct 28, 2023
Dear Sir ot Madam, it was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Terry

Traveled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
You was within walking distance to many of places. Nice rooms
Stayed 3 nights in Oct 2023
Response from Lena on Oct 28, 2023
Dear Terry, it was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Dariusz

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Great hotel, will come back everytime we in Szczecin
Stayed 5 nights in Aug 2023
Response from Lena on Sep 7, 2023
Dear Dariusz, it was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 2 nights in Jun 2023
Response from Lena on Jun 15, 2023
Dear Madam or Sir, it was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 3 nights in Mar 2023
Response from Lena on Apr 4, 2023
Dear Sir or Madam, it was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best.Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Highly recommended
This is by far my favorite hotel in Szczecin. Small, but professional and with fantastic service - every time and from every employee. Add to that spacious and comfortable rooms and this is a sure winner.
Stayed 3 nights in Nov 2022
Response from Lena on Dec 5, 2022
Dear Sir or Madam, it was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Andrew

Traveled with group
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Nice little hotel close to many restaurants.
Response from Lena on Nov 11, 2022
Dear Andrew, it was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Gemma

Stayed 1 night in Sep 2022
Response from Lena on Oct 11, 2022
Dear Gemma, It was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Elzbieta

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Stayed 1 night in Sep 2022

10/10 Excellent

Anna

Stayed 1 night in Aug 2022

10/10 Excellent

Dorota

Stayed 2 nights in Jun 2022
Response from Lena on Jun 25, 2022
Szanowna Pani Doroto, było nam bardzo miło Panią Gościć. Dziękujemy za najwyższe noty. Jest to sygnał dla całej załogi, że warto dać z siebie wszystko dla satysfakcji naszych Gości. Zapraszam ponownie do Hotelu Zamek Centrum. Pozdrawiam serdecznie, Lena Czaplejewicz Kierownik Recepcji

10/10 Excellent

Jesper

Business traveler
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Apr 2022
Response from Lena on Apr 16, 2022
Dear Jesper, It was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 3 nights in Jan 2022
Response from Lena on Feb 3, 2022
Dear Sir or Madam, It was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Robert

Business traveler, Traveled with partner, Traveled with pets
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The front desk was a very nice and friendly. The hotel had a very modern and beautiful atmosphere. The rooms are very clean and warm at the winter time. Food are delicious, what was most important to us, that we could take our lovely dog with us. I recommend highly this place. Thank you so much. Dana and Rob from Canada
Stayed 1 night in Dec 2021
Response from Lena on Dec 31, 2021
Dear Robert, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

8/10 Good

Annette

Traveled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Great location close to the center of Szczecin
My brother and I stayed 1 night in this hotel on our way back from Gdansk. Had a very nice stay with some very friendly staff. Also got an upgrade to a nice suite so had plenty of space in the room. The hotel is in an ideal location just within a few minutes walk down to lots of cafes and restaurants. It is also just located around the corner from the touristy walk you can follow around the city to see all the highlights. There was limited parking space but we got a space in the courtyard so the car was well protected from the street traffic.
Stayed 1 night in Sep 2021
Response from Lena on Oct 6, 2021
Dear Annette, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Gergely

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Aug 2021
Response from Lena on Aug 18, 2021
Thanks for staying with us. We appreciate your feedback!

10/10 Excellent

Verified traveler

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Nicely located near the old city hall, the market square and the ducal palace. The room is clean and spacious enough for two.
Stayed 1 night in Aug 2021
Response from Lena on Aug 18, 2021
Thanks for staying with us. We appreciate your feedback!

10/10 Excellent

Florian

Business traveler
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
This is a very nice hotel with very friendly and helpful staff and good kitchen.
Stayed 3 nights in Jun 2021
Response from Lena Czaplejewicz on Jun 27, 2021
Dear Florian, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Michael

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Very pleasant
Well maintained friendly place. Centrally located. We left the car in the gated parking lot of the hotel and saw 5he city by walking. Very pleasant experience Thank you to the staff.
Stayed 2 nights in Oct 2020
Response from Lena Czaplejewicz on Oct 27, 2020
Dear Michael, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

René

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Great breakfast
Great, friendly service. One of the best breakfasts we had in Poland. Overall really happy with our stay, although we only stayed one night.
Stayed 1 night in Oct 2020
Response from Lena Czaplejewicz on Oct 22, 2020
Dear René, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

martin

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 3 nights in Aug 2020
Response from Lena Czaplejewicz on Aug 24, 2020
Dear Martin, It was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best. Sincerely Front Desk Manager Lena Czaplejewicz

8/10 Good

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Aug 2020
Response from Lena Czaplejewicz on Aug 23, 2020
Dear Sir or Madam, It was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best. Sincerely Front Desk Manager Lena Czaplejewicz

8/10 Good

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Good location, nice apartment and great breakfast
Stayed 1 night in Aug 2020
Response from Lena Czaplejewicz on Aug 15, 2020
Dear Sir or Madam. It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

8/10 Good

GRAHAM

Business traveler
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
great hotel, great location right next to the old town with lots of restaurants and bars. limited free parking spaces but secure.
Stayed 2 nights in Aug 2020
Response from Lena Czaplejewicz on Aug 8, 2020
Dear Graham, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

8/10 Good

F C

Business traveler
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
wonderful hotel
Very good hotel, comfortable and clean. Staff all pleasant and very helpful. Would definitely stay here again.
Stayed 1 night in Feb 2020
Response from Lena Czaplejewicz on Feb 8, 2020
Dear Sir or Madam, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service
Very caring staff, excellent breakfast and coffee!!!
Stayed 3 nights in Nov 2019
Response from Lena on Dec 2, 2019
Dear Sir or Madam, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Nov 2019
Response from Lena Czaplejewicz on Nov 21, 2019
Dear Sir or Madam. It was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
While the amenities are brilliant: clean rooms, well appointed, excellent bathroom and lovely location. The winner here are the staff, nothing is too much of a problem and they are extremely engaging. Loved my stay!
Stayed 3 nights in Oct 2019
Response from Lena Czaplejewicz on Oct 27, 2019
Dear Sir or Madam, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

James

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Superb Experience!
Great location, very friendly and helpful staff, exceptional breakfast, and convenient, secure, and safe FREE parking. Very comfortable and quiet.
Stayed 1 night in Sep 2019
Response from Lena Czaplejewicz on Sep 16, 2019
Dear James, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Daniel

Liked: Cleanliness, staff & service
Stayed 2 nights in Sep 2019

10/10 Excellent

Tat Keung

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 2 nights in Jun 2019
Response from Lena Czaplejewicz on Jun 29, 2019
Dear Tat Keung, It was a great pleasure to have you as our guest. Thank you for the high marks. We always try to do our best. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Excellent hotel in a perfect location. Gteat choice of hotel for us. Comprehensive breakfast. Highly recommended
Stayed 3 nights in May 2019
Response from Lena Czaplejewicz on Aug 1, 2019
Dear Sir or Madam, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Graham

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Pick this one!
Really nice setup, has a boutique feel about it, staff were all great. I stay in Hotels all over Europe with work, best power shower I've had this year.
Stayed 1 night in May 2019
Response from Lena Czaplejewicz on Jun 13, 2019
Dear Graham, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Bathroom was ultra modern and very good. Wonderful view across river from third floor and right in old town center
Stayed 3 nights in Apr 2019
Response from Lena Czaplejewicz on May 6, 2019
Dear Sir or Madam, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Lori, usa

Traveled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
This hotel is in a wonderful location. Our room was large, well laid out and the bathroom was a good size. They referred us to a restaurant that brewed it's own beer and we had a wonderful meal. The breakfast buffet was very good. I would stay her again if traveling through the area.
Stayed 1 night in Mar 2019
Response from Lena Czaplejewicz on May 3, 2019
Dear Sirs. It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

8/10 Good

Verified traveler

Liked: Cleanliness, property conditions & facilities, room comfort
Good room but not so good breakfast
Decent room but small hotel with few facilities. Breakfast was not very good and area is not really in the centre of the city
Stayed 1 night in Feb 2019
Response from Lena Czaplejewicz on Feb 14, 2019
Dear Sir or Madam. It was a great pleasure to have you as our guest. Thank you for the high marks. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Traveled with partner
Liked: Cleanliness, staff & service, property conditions & facilities
Location is great for exploring the town. Outstanding staff; excellent breakfast, and the restaurant is at big-city level but small town prices. A great get-away location.
Stayed 1 night in Dec 2018
Response from Lena Czaplejewicz on Dec 31, 2018
Dear Sir or Madam. It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

monika, london

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Nice hotel
Very friendly stuff,specious ,clean rooms,nice breakfast ,great shower,the only’but’were a bit uncomfortable pillows
Stayed 1 night in Aug 2018
Response from Lena Czaplejewicz on Aug 29, 2018
Dear Monika, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Agnieszka, Victoria, BC, Canada

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
A very modern, comfortable and well-situated boutique hotel. The rooms are huge, the bathrooms are fantastic. The hotel staff is extremely friendly and the included breakfast is more than awesome. The location is close to the river and in the up-and-coming New Rynek, which is full of great dining options, bars and coffee shops. Close to all attractions. We will be back!
Stayed 1 night in Jul 2018
Response from Lena Czaplejewicz on Aug 3, 2018
Dear Agnieszka, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Great Hotel in a Perfect Location
Hotel Zamek is overlooked by a historic castle in the heart of Szczecin's old town walking distance to the Odra River port, all the sites and eateries. Sensational place to stay in and all the hotel staff were fantastic. Wil stay there again.
Stayed 3 nights in May 2018
Response from Lena Czaplejewicz on Jun 4, 2018
Dear Guest. It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Waralak

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Very good
Response from Lena Czaplejewicz on May 15, 2018
Dear Sir or Madam, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

8/10 Good

Sabrina

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Perfect for the area
Great
Response from Lena Czaplejewicz on May 4, 2018
Dear Sabrina, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Teresa

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Perfect stay!
I had a wonderful time at Hotel Zamek Centrum while visiting Szczecin. The staff was incredibly friendly, the room and surroundings impeccable and the food excellent. The level of service went above and beyond my expectations. It could not have been better. I will return!
Stayed 3 nights in Mar 2018
Response from Lena Czaplejewicz on Mar 22, 2018
Dear Teresa, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Brilliant hotel
Excellent service from a very friendly and professional staff. Wonderful breakfast, nice rooms - simply a splendid stay! I highly recommend this hotel.
Stayed 1 night in Mar 2018
Response from Lena Czaplejewicz on Mar 15, 2018
Dear Guest. It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

leonard, london

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Overall a very good hotel
Staff and facilities are fantastic. The restaurant menu is outstanding with great selection of dishes for breakfast.
Stayed 1 night in Feb 2018
Response from Lena Czaplejewicz on Feb 23, 2018
Dear Leonard, It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Simon, Manchester

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Home sweet home
Comfortable friendly spacious accommodation great staff and excellent kitchen dziękuję
Stayed 3 nights in Oct 2017
Response from LENA on Nov 18, 2017
Dear Simon. It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz

10/10 Excellent

Anna

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Perfect for business stay
Very nice and big room, very quiet, great location, delicious and plentiful breakfast. Would certainly recommend.
Stayed 1 night in Aug 2017

10/10 Excellent

Meir

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Well situated, good staff & atmosphere, clean.
The staff were very kink and very helpfull. The hotel is close to the main activities. The breakfast was very good, as well the service and atmosphere. In one word very recommended. Raya & Meir
Stayed 5 nights in Jul 2017
Dear Guests. It was a great pleasure to have you as our guest. Thank you for the positive feedback and high marks. We always try to do our best and we are delighted to hear that you enjoyed your stay at Hotel Zamek. Sincerely Front Desk Manager Lena Czaplejewicz