I stayed two and a half weeks in Petra & Chris's appartment, and I was very happy with it. The appartment is spacious. It has lots of facilities, notably for keeping it clean, which I think is important, especially for a longer stay. It has connections to two tram lines around the corner and a square nearby for even more connections. And Vienna's public transport is treasure, in case you did not know. Everything met the description for Airbnb. Petra reacted very quick and helpful to a request I had. The appartment contributed greatly to my feeling very at home in Vienna. Highly recommended.