Having travelled for three months so far and stayed in multiple Airbnb places, we can honestly say this was the best one by far. It is in a fantastic location for Vienna, you can walk everywhere. It is near the expensive shopping areas though, so be warned as your credit card might get a workout :)
The apartment was very clean, has everything you need to cook, very comfortable bed, and very quiet at night so you can get a good sleep after exploring all day. Liz and Jules were very quick in all their communication and provided us recommendations/tips whenever we asked. Our favourite Airbnb residence so far, highly recommended!