Me and my boyfriend was only in Vienna for one day (travelling further on the next day) and this place was perfect for us. We got to the apartment earlier than expected but they arranged for us so that we could leave the luggage in the apartment right away.
The apartment was very nice and close to a subway station which made it very easy to go wherever you wanted. One thing to note is that the walls are pretty thin and we could hear the neighbours.
Overall would totally come again! Thank you for a great stay.