This is really an ideal location to tour the heart of Berlin. Curiously, even though the apartment is located in a very central area on a busy pedestrian street, and across from the S-Bahn and tram, it is perfectly quiet since the apartment faces the inner courtyard. Philip was not in Berlin the days I was there so I had the place to myself. He made the key pick up and check out super easy. After the first of three days, the elevator ceased to function so the stairs became the only access point - 3rd floor, not bad with a small suitcase.