Chris was a wonderful host - he greeted us warmly at the door and then showed us maps of Vienna to get us acquainted with the city. He was quick to communicate with and overall lovely.
The apartment itself is exactly as described - perfectly clean, good amenities and very fit for two people. The only thing we would point out is that it's not exactly central if you're looking to visit the city by foot (it's an hour and a half away from St Stephen's Cathedral).
We would highly recommend - it's a lovely local neighbourhood, a two minute walk from the metro and Chris's apartment (and Chris himself) all round made us feel welcome and at home.