We stayed for a weekend in Berlin and Alexander was a great host. He greeted us when we arrived around 11pm (we had a late flight into Berlin). He gave us some dinner recommendations. The room itself is quite spacious and the area the house is in is very quiet yet you are just a short walk from a lot of restaurants, the U-bahn (metro) and nightlife. When I return to Berlin I'd definitely check to see if we can stay here again.