It was a perfect stay. Before coming to Vienna we received all the instructions we needed (check-in&out, facilities, neighborhood) The communication was really smooth. The flat itself is located on the last floor of an old house with a charming staircase and although it is close to the roof (it was 30°C outside) we had a very pleasant interior temperature. It's very clean an spacious and it has a comfortable bed!
It has everything you need incl. well equipped kitchen and you reach the place by tram or bus.
We really enjoyed our stay!