This was our first airbnb booking, and we weren't disappointed. Communication with Gerhard was easy and quick, and he went above and beyond with suggestions and advice for our trip to Berlin, both before and after we arrived. He even took the time to find some toys for us, since we were bringing our one-year-old.
The apartment itself is nice, clean, close to public transportation and in a quiet neighbourhood. Cafés, groceries and bars are just around the corner from the place.
I would definitely recommend staying with Gerhard to anyone.