We stayed in Berlin for five days with my husband and my nephew. The apartment worked very well for the three of us, and a couple more would have fit in easily, as the living room at the other end of the apartment has a folding sofa. This was the best Airbnb apartment we have rented in any city so far.
The kitchen facilities were excellent, and it worked very well as a dining and common area for us. The bathroom was warm, the water flow and heat were reliable, and there were two sets of towels for each of us.
The hosts contacted us to make sure that everything was in order, information was readily available on the apartment pad system, and we especially appreciated their emphasis on ecological living.