André’s is perfectly located and very well designed/decorated. There are plenty of nice and restaurants all around and you can easily go to the center of Berlin by foot (metro station at 5min walking-distance).
The flat was very clean and very well equipped.
I did not get the chance to meet André but he was very reactive and clear in his instructions.
The key-safe outside the flat is very convenient and safe.
I would highly recommend André’s flat.