My three friends and I enjoyed the place, which was very well equipped and was perfectly described on the website. Rainer was welcoming and suggested good places to visit, but unfortunately we didn't get to meet up because of our packed schedule but we communicated a lot through emails and messages (he replies fast). The place is near Rosa-Luxemberg U-Bahn station which is convenient and Alexanderplatz is within walking distance, which also has a U-Bahn that connects to a lot of places. I would definitely recommend to others.