We had a wonderful stay here! Heliodor greeted us upon arrival, gave us a tour, and showed us how everything works, He had recommendations on what to see and do while in Berlin and had maps of the area and public transportation. The apartment is clean, spacious, in a wonderful location and perfect for large groups. The bus stop is right across the street and the Metro in around the corner. The only regret I have is that I wasn't able to stay here for more than 2 nights. Highly recommend!