Jan's flat is very clean and stylish! I stayed 5 nights in Berlin with 2 friends in one room and it was enough space for 3 persons. 2 persons in queen bed and 1 person on the sofa. The balcony offers you a nice view and the overall vibe of the flat is amazing. The S-bahn Sonnenallee is very close and you have nice places to eat your breakfast . There is one amazing ice-cream place around, best ice-cream ever, you should try it!