The apartment is very nice. It is very clean and has all the utilities you would need for any kind of trip, this includs short to long term vacations.
The neighborhood is quiet and at your disposal you cand find a multitude of shops, markets and restaurants. You can even find a very good restaurant right outside the building, on the corner of the street.
The nearest subway station is a bit far away, around 30 minutes of walking, but there is a tram line (31) near the building, this can take you near the cultural center of Vienna.
Personally, I did not meet the host, but we stayed in touch using the application's chat function and he was kind enough to provide me with all the necessary information.
I hope that my review is of help to anyone lookito stay at this apartment.