The apartment is modern and well-located: around 20 minutes walking distance to the city center and to the metro station Kettenbrϋcken-gasse (line U4, 5 minutes by walk). There are also other options on hand including bus 59A (at a 50 m distance).
The apartment is as described on Airbnb and fairly quiet.
Stefan was collaborative and answers quickly.
I would definitely recommend Stefan’s apartment for your stay in Vienna.