As we were doing first time self check in, we did not know where to find information about the process. We had to find the information ourselves and then had to solve some other small issues (the colour of keychain is different) and we could not reach the host at first.
In the beginning we did not get much help, but then he called and apologized and offered help. So in the end thats ok. Also before arrival the host responded to all our questions very quickly and thouroughly.
The apartment looks like on the pictures. Its nice and spacious, however it needs some small upkeep (painting, damaged doors, etc.) and the refrigarator was not cleaned properly (otherwise the flat was cleaned properly).
Otherwise there were no problems with the flat and we enjoyed our stay. The ratio price / quality is very good, especially for bigger groups and we would stay at the flat again in future.