My husband and I stayed in Stefan's apartment during our recent trip to Vienna. The apartment is ideally located within 10 min walk to the Museums Quarter, and a 2 min walk to a grocery store and about 6 min walk to the nearest train station. The location is ideal to explore Vienna.
The apartment itself was very nice, and the space was quite efficient. We took advantage of having a kitchen space and made breakfast and dinner without issue. The bed was comfortable, and it felt as if every detail had been considered for our stay. The neighborhood is safe and many restaurants, bars, and stores are nearby. Very comfortable space.
I highly recommend staying here while in Vienna. Stefan was very easy to communicate with and responsive to any questions or needs.