Philipp was a nice host and met us when we arrived to give us the key and explain the apartment. The bathroom is newly renovated (bring your own towels - none provided), and was kept very clean.
However I am not entirely sure this can be listed as a private apartment, because it has been converted from a bigger apartment - there was another door down the hall that Philipp exited our living area in the apartment too, and said he stays there with his family, I think they have converted 2 apartments into a bigger and smaller (the smaller being airbnb and his father stays there other times). I was not even sure there was a lock on the door between his apartment and the airbnb, so it was slightly uncomfortable when we were expecting a private apartment. The building is quite noisy as you can hear every noise from the neighbours and the stairs, and also when we arrived the heating was not turned on (in beginning of March) and even after Philipp turned it on it seemed to turn off at times during the day and evening so we were left to rug up in extra jumpers and blankets.