We had a pleasant three days in Alex's house. All amenities are available here, with heating, shampoo, clean towels and enough hot water. The keys are easy to found, and there is a delicious Cambodian restaurant 20 meters away, but it doesn't open on Monday. Great place to go if you're going on a trip with friends to Berlin. Not far from the metro station, if you want to eat something at night you can take a bus or S-Bahn for a few minutes. A one-day-ticket for Area A will be enough to visit most of Berlin's attractions. Anyway, great location, quiet but safe house.