Convenient location just off Alexanderplatz. Great for small groups, as there are six beds (1 double, a three single beds room and two sleeping couches that sleeps two each in the living room). Only 'downside' is that you can't throw a party in the appartement, as it is in a residential building. But hey, you're in Berlin. The last place you need to throw a party in your own apartment. Communication was straight forward, we were welcomed at the front door and got all the help we needed. Free late check-out as there would be no new guests on the day we left. Great!