The apartment looks exactly like described! It doesn't have much soul of its own, but it has everything you need for a short stay and it's perfectly clean. I loved the neighbourhood as well - it's very close to Belvedere, which is perfect if you're having a full schedule - like I did - but still want to have a beautiful morning run. There is a lot of supermarkets in the area. If you like walking you can actually go to the city centre by foot - the path from Karsplatz to 'home' was one of my favourite parts of the stay...
And Corinna is very sweet, caring and easy going, I wish I had the time to have a coffee with her - she can give you great tips about what's going on in Vienna, especially in fashion and design field, and where to get good coffee.
Next time in Vienna I'd try to stay at this place again, because I really felt well in there. Recommended!