I would rather keep it secret, but this is the best place to stay in Berlin. Very central location but quiet, clean, cool, hip, spacious, well equipped, and a great host who really looks out for you. The best value for money you can get. Just one caveat: The elevator does not reach the apartment itself: you have to climb the last floor. therefore, not ideal for couples with a stroller and unsuitable for the handicapped. Otherwise, a dream of a place!