The apartment is conveniently located close to the Wien Mitte U-Bahn station, where the 16 min train transfer from the airport arrives and departs. The station also has the U4 line that goes to the Naschmarkt and Schönburg Palace. The Museumsquartier and Stephansplatz are about a 20-25 minute walk away.
Birgit was great about communicating instructions for check-in and stayed in touch during our stay. The apartment is clean, tastefully furnished, and sheets and towels are supplied.
The area itself can be a bit of a wildcard, by no fault of the host. There's a basketball court across the street, so it gets noisy on the weekends if people decide to start playing early in the morning. On Friday night there was also thumping bass from somewhere down the street. All the same the stay was great value and exactly what we needed for the weekend!