It was very easy to communicate with Stephan who left us guidance as to how to find the keys. 2 beers were waiting for us inside which is always a very welcomed touch.
The flat was exactly like the pictures and rather well located with a massive shopping center 10min away and bar areas in Neukolln and in Kreuzberg 20min away or clubs at walking distance or short cab drive away.
I highly recommend this flat for anyone who's looking to stay a week end in Berlin !