Felix himself wasn't in Berlin during our stay in Berlin, but he arranged everything well with his roommates. Felix and his roommates were all really easy to get along with. He left us a note with good restaurants to visit, which is always very practical when you arrive in a new city. The room was really large and clean and the Wifi was the best one we got during our entire vacation ;). One thing to keep in mind though is that, if you're just friends, the bed is a bit too small, but the two couches are suitable as well.