Staff was VERY friendly (very limited English, but they do well regardless) and did their best to make sure that I was taken care of. When I had to leave early in the morning and was checking out, the front desk lady as well as another lady who I suspected was the manager really wanted me to experience the breakfast. I was in a hurry and to get to the airport. They offered to box up my breakfast so I could take it to go. Felt bad for declining the offer, but it was very nice for them to offer that.
My room was very clean and had everything that I could possibly need for my stay. There is a very small safe in the room and it won't hold much more than a few cell phones. My Mini iPad would not fit in it.
Only issue to report is that whenever I flushed the toilet or took a shower, there was a very loud noise from the plumbing. The noise lasted about 5 seconds and continued every 20 seconds. Not a huge deal for me, but I can only imagine what the other occupants on my floor were thinking at 6 AM.
In conclusion, I liked the neighborhood, the staff was very friendly and helpful, room and bed was comfortable, and while it's not a 4 or 5 star hotel, I would highly recommend it if you need a place to Stay in Berlin that is safe, accommodating, and friendly.