We stayed four nights in Raphael's room. It was really big, comfortable and clean, and so was the entire apartment.
Raphael was on holiday, we met the housmates and they were nice, helpful and respectful.
Considering the location of the house (close to everything, city center, u bahn, bus, bars and places to eat) we really enjoyied this place.
Best choice for one or two persons who want to discover one of the most beautiful city in the world.