Great place to stay. Nice cosy appartment on a quiet cobbled street. Plenty of space for the four of us and everything we needed for our stay was provided. Martin was super quick to respond and also checked with us to make sure everything was ok. Best of all the location. Great neighborhood with a really nice vibe, loads of local restaurants, bars and cafes but just one stop on the U Bahn (or a quick walk) to Alexanderplatz.