The location of the house is great, it is close to all main attractions and in the street are really nices places to eat or drink something. It was a dissapointment after reading al the good comments that unfortunatly the appartment was not clean. It was dirty, especially in the bathroom and kitchen. After a day sightseeing we came back and it smelled damp. Too bad because the appartment looks nice, the bed was good and it's really quiet.
Vienna was a really nice city, we enjoyed it very much. Recommendations; Ulrich and Wirr for breakfast, drinks and dinner. Go for brunch on Sunday, we went to Lutz, really good. See an opera, so nice. Book the tickets in advance. Nice to go is the Sissi museum. From the airport it is easy to take the train and metro to the appartment.