Very good communication with Günter directly after the booking.
The flat was very clean and practical.
We had a very nice stay in this perfect located apartement, just next to the Schönleinstrasse U-Bahn station. You'll find around restaurants, Spätis and all what you need.
You can also park your bike inside the building, so don't hesitate to take yours or rent it in order to enjoy Berlin by ride...