We had a nice stay at Christian's flat. It is on the top floor with other Airbnb's.
The flat is very spacious, comfortable and there is a nice open view all the way to the mountains. We really appreciated the big couch and found all the useful utensils in the kitchen. The neighborhood is modern Vienna and you have access to the historical center with the 31 tram or metro lines in a very short time - the stations are across the street to the flat. Billa is just around the corner, there is also a bakery just in front of Billa. We also tried a very good Vietnamese restaurant called Vevi Vietnamese Vegan (although we are not vegan ;)) ! Thanks