This is an excellent apartment in a very nice area of Vienna, close to the sub-way and only two stops to the city (walkable if you are feeling energetic). We stayed for over 2 months, as travelling for work, and we found it an excellent area of Vienna to stay. Roman was extremely helpful and welcoming. Mariahilf (District 6) is a fairly young, trendy area, and has loads to do (lots of shops and places to eat). Roman organised check in and check out via his excellent staff, who were extremely nice and also welcoming/helpful, and in general, this was a very well managed AirB&B experience.