Nice and quiet, almost rural, location, solid connection to the center of Berlin. Very friendly and polite hotel staff. Cheap beer at the hotel bar :-). Small, but very clean hotel room including bathroom (take your own shower gel with you).
10 min from S-bahn station, room is nice and clean. breakfast is fresh and good.
on Sunday evening we had to wait 20 min near the hotel doors until hotel staff arrive and open the doors.
The hotel is very clean