Location of the flat is great: 10 minutes walk from the Wien Central Station, close to Belvedere (3 min) and 30 min walk to other central attractions. We especially liked flexible check-in time, because of the key stored in a locker outside the flat. The apartment is in the -1 floor, so do not expect a lot of sunlight coming in. Despite this, the heating was sufficient. However, the vibrations from the passing cars and trams on the street are quite noticeable during the night, which might disturb light-sleepers. But we got used to that after 1 night. Richard responded quickly to all our questions and made us feel welcome. In addition, he is always ready to give some tips on exploring the city. We'd definitely recommend this apartment for short-stay visits.