The room is so big.
I stayed in a room on the ground floor, which I thought would be uncomfortable, since I had a really bad experience living in a ground-floor-room in Berlin.
But the whole experience is good.
The only thing is the train (S3) which takes us from the Hbf/city center from the hotel only works hourly (on Sunday? I am not sure), and the timetable in the station is not accurate. It is not far from city center though.