Excellent apartment. It's located very close to Vienna Central Station (2 minutes walk) and it's very convenient as it's easy to go to Airport and other destinations!
The flat was super clean and QUIET despite of being close to the station.
There are many restaurants around and the location is super convenient. It's very close to Belvedere and then you can head to the center easily... We stayed 3 nights and we were always able to find shops/restaurants.