Beautiful, clean and cozy room and apartment. The host, Beatrix, is kind and makes sure everything works out very well. This has been one of my better Berlin stays, and I was very happy to stay there.
Some more local details :
The house is a beautiful old art nuveau house, that's quite a joy to witness.
Likewise, the houses in the area are also old, beautiful and well maintained.
The area is center of old West Berlin, with a relaxed and friendly air.