Karsten and his apartment were both amazing! He was very helpful with guiding us from the airport and finding the place was really easy. It's only a 2 minute walk from the nearest U-bahn station which helped us see all of Berlin with ease and his excellent recommendations of where to go were all spot on! The apartment was spacious and beautiful with loads of goodies for us to use and some really unique features including the incredible bed which was very very comfy. It's only a short walk from a big supermarket as well as quirky bars and cafes and Karsten was a great host. We would definitely come and stay again and only wish we could have spent longer in Berlin in this wonderful place!