This was our first trip to Vienna, and we would definitely stay in this hotel again.
The hotel staff was friendly and helpful, and the location of the hotel is great. Very near the attractions in the city, and there is a subway station and an airport bus station within a minute walk of the hotel.
The rooms are amazing, especially for a European hotel. They are essentially apartments, with a bedroom, living room, and an mini-kitchen.
I highly recomment.