This is not a classic airbnb suite and I think Guergana explained it nicely. I got exactly what I exspected. I felt like I was staying in a friend's apartment.
If you want too see in addition to all sights what it really looks like to live an an international part of Vienna, this is the right place for you. The neighborhood is friendly, quite quiet with many shops, cafes, a park near the water for rest, exercise or walking. The metro can be reached fairly quickly and easily by bus to a couple of stops.
That was enough benefits for me :-).
There where no problems for check in and check out. Guergana was very kind and available for any questions.
All I have to do is wish her all the best.