A great place, highly recommended!
The apartment is super roomy and comfortable, very clean and super quiet. Self check in/out was very easy and there's a locked place for your stuff if you arrive a bit early or leave late.
The location is great! Not in central Wien but really close and quick by public transport (or 15 min tops on foot).
There are really nice coffee shops, restaurants and bars around. Also, a nearby supermarket and pharmacy if needed.