We had an amazing stay at Jannes' flat. It was clean and we had everything we needed. The location was also great as it was easy to walk to most of the places we wanted to see. He also responds very quickly and the recommendation he gave us for a restaurant to try authentic Austrian food was great. He also let us stay 2 hours longer than the original check-out time which we appreciated a lot because we didn't have to go to the airport and be waiting for so many hours. I can say more good things but in general we most definitely will book his apartment again if we ever came back to Vienna.