This was one of the best Airbnb experienced I have ever had. And I've been to a plenty of Airbnb places.
First of all, the flat. As a female solo traveler, I felt very safe in the area. The location is convenient, you can get to the city center by foot. The neighbors are quiet, the street noise isn't too loud. There are shades on the windows and earplugs for your sleep to be uninterrupted. The room is very spacious and bright, there is everything you need. The flat is very very clean, its vibe is great. There is enough space for 1-2 people, probably someone may even sleep on the couch - it looked comfortable! =)
Then, the host. Dominik is a wonderful person, very friendly and polite. He took care of everything, from checking out the trains for me to get from the airport to being a great company to creating a wall map in the room with the suggestions on where to go in Vienna. It was a pleasure to meet him and to get to know him. He managed to make my stay a very pleasant one and I really appreciate this. Dominik is very organized that adds to him being an amazing Airbnb host.
All in all, if you are deciding on whether to stay at this place - go for it. It's a wise choice to stay here. I am sure you will enjoy as much as I did!