The appartement is pretty big and clean. Was great to live a few days in Vienna. If you are traveling by train, the metro Michelbeuern AKH is the best way to go (only a few minutes to the appartment).
Good to know: the appartement is not very soundproof, so as it is noted in the description you hear the street nearby and the neighbours sometimes. Nothing that would keep me from going there again.
Also the kitchen is pretty small so there is only room to cook easy meals.
Overall we loved it, because it was a clean, big and bright appartment.