My husband arrived before I and met with Katarina the caretaker who showed him around the apartment and how to use the various appliances etc. She was friendly and accurate in her explanation. We found the apartment very well located with the nearest U Bahn station only a 3 mins walk , the main Prater Station at equidistance and if you choose to walk to the Stephanplatz, it would be a very pleasant 20 mins leisurely walk.
The apartment itself is functional, clean and just ideal for couples or a family of 4. The Wi-Fi speeds was excellent. We would not hesitate to recommend Steve and Ana's place to those travelling to Vienna.