We had a five good days in Berlin with five of us. Apartment was beautiful with high ceiling and wooden floor. The area was nice and quiet.
I must say, and I have shared this with the owner, the house was not clean. Both kitchen and bathroom were not cleaned properly. Two of the three beds were bad, sleeping on it was not nice for adults (they were childrens beds that were folded out). Bed stuff, cushion and sheets smelled dusty and cushions were really old.
At some point we had a clogged bathroom drain we needed to fix ourselves.
I shared this with the owner and he offered a refund, which was correct.
Although we had a great time in the city, I was somewhat disappointed. Would not come back if this would not be fixed. Otherwise it would be a beautiful place and worth visiting!