Kai was a great host, we needed a last minute Airbnb and Kai took our booking just 24 hours before we arrived in Berlin. Great communication.
The apartment is very close to the U-BAHN which gets you just about anywhere in the city. The area is safe and quiet. Perfect place to stay for a few nights with your partner or by yourself.
Kai and his colleague did everything they could for us, would recommend to everyone.