Alan and Guenther were wonderful hosts. They were super quick to respond to questions and incredibly accomodating. They let us know of special events in Berlin during our stay and about anticipated issues with public transport (and how to get around them). The apartment was lovely. We especially enjoyed the large balcony which was looking out onto a quiet courtyard with a big chestnut tree in the middle. The apartment had everything that you might need for a short-term stay. This was all around a great place to stay and I can highly recommend it.