We stayed at Alex and Annabel place 5 nights. Their friends waited for us although we arrived late in the night. Everything was perfect, the flat is gorgeous and very well organized. The neighborhood is wonderful with nice bars, restaurants and shops. It is in the middle of the Berlin Wall area and very convenient to visit Berlin. We really felt at home. Our kids were able to go around by themselves and we enjoyed Berlin by bike. Everything very easy and pleasant. There was only a minor problem of noise due to temporary works in a near building but the flat is very well isolated. I would definitely recommend it!