Stay at Karen's place was very comfortable, the description of the apartment was accurate, it was easy to find it and to get in (good instructions).
Quite peaceful neighbourhood (while still in Berlin centre).
Karen was very communicative, answered quickly and helped when needed.
One room for improvement would be to add recycling bins inside (there are separate bins outside but you have to collect trash in one bin in the apartment and then separate them outside). Secondly the shower handle needs replacement.
All together the apartment met all expectations, Karen - it was a pleasure to stay here.