Everything as described. The apartment is small but still able to accommodate 4 people. Everything is nice and tidy, towels were provided.
The location is very nice as it is just a couple minutes away from a train station which easily gets you anywhere in Wien (for example, getting to Prater takes you just about 30 minutes).
The only issue we had was that a road reconstruction was underway right in front of the building. Hence, we couldn't sleep as long as we wished. But this is by all means just temporary and out of control of the apartment owner.
All in all, I rate this 9 out of 10 points.