Wow! Is this the best Airbnb in Berlin? Maybe! We had a great stay at Carstens place. The location was excellent, close to the centre but nice and peaceful. The apartment is much bigger in person as well as the balcony being much more stunning than in the photographs.
There is even a lovely little cafe/bistro fright next door also, we had coffee and pastry every day!
Our host was extremely helpful, attentive and welcoming.
Would definitely stay again!