The one-room studi9 was perfectly fine for a short stay. There is a lovely garden visible from the small balcony. Clean and neat, it is exceptionally well located of Nollendorfplatz is your center of activity. 24 hour grocery around the corner, lots of good and mediocre restaurants all around and very good public transport connections. Not the place if you like to do more than microwave something. Also even though there is an elevator to the (American) second floor apartment, there is the usual loony German arrangement of 7 steps up to the elevator. When I travel with my elderly parents, this is always an issue. The only negatives were the shower, which leaked and the kitchen faucets that were difficult to turn off. I would stay there without hesitation for three or four days. Thanks