On our holiday in Vienna, we chose to stay in Rosemarie's location. It is a large apartment with 2 rooms, a small kitchen equipped with absolutely everything you need, located very close to the transportation (5-7 minutes to the subway, 2-3 minutes to tram 42), the supermarket is right next to the entrance in the building. The apartment is very nicely decorated (Rosemarie paints very beautiful, and the walls are full of her lovely paintings). There is also wi-fi in the apartment, which works very well.
Rosemarie and Franz are extraordinary, very careful hosts. They were waiting for us and showed us everything in the apartment.
I definitely recommend staying here and certainly, Rosemarie's apartment will be our choice next time when we will visit Vienna.