The location is quite, and rather close to the city centre, although a bit further than I initially thought -- ~20 mins to concert halls and ~30 mins to Mariahilferstrasse (where lots of places are located) and Museums.
There are a couple of good cafes and restaurants close the the apartment + a grocery store 5 mins away.
The apartment was clean and had everything I needed. If not for WiFi which had a very slow uplink and a not-heating-iron that would be an excellent stay.