I would highly recommend Kiki & Mary's place, the location is great with transport right outside of your door, we used the 2 & 5 trams to connect to other transport and to get around all of Vienna. There is a SPAR supermarket only a short distance away and the place has everything you need to cook your meals if preferred. The place is very clean and welcoming and great value for money. Kiki & Mary are always available and respond quickly to any questions - great hosts!