We had a great stay at Sebastian's flat. My parents, sister, boyfriend and I all slept comfortably in our respective rooms, which were all large and spacious (we were 5). The location was great for getting around the city with all kinds of public transport nearby. The hosts were very flexible with us checking in early. The apartment was clean and gave us a sense of what it's like to live in Berlin. I would definitely recommend this place to others! Thanks for having us :) Leila