We had a wonderfull weekend in Viena and part of the credit goes to Sandra's apartment. It is very close to the metro station(10m) and on the U3 line that is well connected to the airport and the city center. The apartment is sparkling clean and has all you need also for longer stays. Sandra was quite helpful giving us some tips on how to arrive faster and cheaper from the airport.
So we will definitely stay there again in the future.