The location is very convenient. I like the hotel on the first floor. The front desk staff when we checked was friendly, but on the next night, he was rude, answered my question of where I can get water around 0100 and his finger to direct me where and told me to read the instruction without even getting his eyes off the computer screen. Rude! It's a good thing the man that was replenishing the vending machine was nice and helped, since the instruction was in German. The elevator is slow and will not stop on our floor (4th) on the way down, for some reason it skips it. We have to take the stairs down, I reported it but the next time I used it, it still was not fixed and I have to take the stairs again. I know it's probably good but after running the Berlin Marathon, that was not the forced exercise I was looking for.
The room was humid, we tried to open the windows but only 1 can be opened but partially.
The toilet is in another separate room apart form the sink and shower/bathtub. So there's nowhere to wash your hands after using the toilet/commode, not even a hand sanitizer, you have to go to the shower room to wash your hands, very odd and not practical set-up