We had a great stay at Alexander and Cristinas appartement. From the balcony we had a great view, and in the evening we could hear the live musik from the cafees around the neighbourghood.
We nerver met Alexander or Cristina, but they were helpfull over textmessage, and it was easy to communicate and check in and out. Overall a great stay and a great appartement in the center of Berlin, in an atractive neighbourghood.