It was last minute reservation, since our other host suddenly cancelled our scheduled place to stay. Alla and Mark were very accommodating and met us late during our arrival from Dresden, which we really appreciate.
The place is spacious for two couples, clean and located in quiet area of Berlin, couple of tram stops from the center. 24 hour grocery store nearby and there are plenty of inexpensive places to eat within 10 minutes walk. We had a good time in Berlin.