Me and my wife stayed in Marie-Fee's room for two nights. The room was nice and more spacious than we expected it to be from the photos. In the apartment we had access to kitchen and the common areas. The location was easy to find and major attractions, such as the Museums Quartier, are within walking distance. During our stay there were other Airbnb guests in another room as well as the hosts who primarily live there, so it could get a bit crowded if everyone wanted to use kitchen or shower at the same time. We did not experience such problems because we woke up early and spent a lot of time out in the city.
Overall I can recommend Marie-Fee's room as a good option for short stay in Vienna.