This apartment was very comfortable and spacious for the 3 of us. It had everything we needed for our stay in Vienna. It is near a terrific supermarket, Merkur, which we went to daily to get items we needed, plus plenty of local restaurant recommendations from Ursula.
As others have noted, it is in a location that you can't beat, within easy walking distance of many of the places you would want to visit, yet the apartment was quiet, being on a small side street.
All in all, it certainly ranks as one of the best Airbnb apartments we have been in.