My second stay in the hotel for now 11 days in total. I love the friendlyness of the employees, the ambience, breakfast has a good choice, the neighbourhood is quiet. The hotel is central enough to walk (it's Berlin, you can walk a lot!), is well connected to municipal transport, easy to reach from the station.
Stayed both times in Tower suites, the ones on 8th floor are amazing!
Only one negative note: as in most hotels the light in the bathroom is **** .... needs improvement, it is way to dark at the mirror.