Antonio really cares about the well-being and the happiness of his guests! He was very easy to reach. He made sure Natasha would be there to welcome us well and she was very helpful: we managed to understand her even though we didn't speak the same languages (if we had not, Antonio had let us his phone number to communicate more easily). The place was very clean and beautiful, there was lots of space (we were 3 people and it was big), the kitchen was well equipped, we were very comfortable.
The flat was easy to find and very close from the viennese attractions (Museum Quartier is a 10 minutes walk), but not in the middle of it, so there was not much noise during the night and we could sleep. The subway is also very close (only a few minutes to walk).
Thank you very much! We really enjoyed our stay at your apartment! I recommend it!