We had an awesome stay in Vienna. Evelina is a very helpful host and the flat is exactly as described, very clean, fully equipped and really cosy. Although it is in a main road the flat is facing the backyard so there are no problems with any noises.
Right next to the building is a supermarket and you can find a bakery across the street. The location is very good as well - public transport is nearby (very easy connection from the airport) and by foot you'll need only 10 minutes to get to the "Innere Stadt". Would go back anytime!