This is a beautifully clean, white and spacious apartment with all the amenities we needed for a comfortable week's stay -- we cooked in most of our meals, and did laundry daily. Naschmarket as well as some excellent supermarkets are a walking distance away (10-15mins), and while the place was a little outside the main city centre, it was very accessible by Uber (or a 30-40min walk if you're up to it).
The apartment is on the ground floor, which wasn't really a problem at night since it's a quiet residential neighbourhood, and there are lovely lavender bushes outside some of the windows. The host met us on check-in and even kindly let us keep our bags in the common store room until our flight, which gave us a worry-free half day more to enjoy Vienna in!
We really appreciated this stay.