Fritz's flat was great for our stay in Berlin. Good location, with good bars and restaurants nearby, only 10 minutes walk from the u-bahn and 25 minutes from warschauer St s-bahn for connection to the airport. The flat was clean and tidy, good water pressure in the shower and a good supply of teas and coffee. The street is a cul-de-sac and there was very little pedestrian traffic, so we had no issues with noise on Friday or Saturday nights.