We enjoyed staying at the appartment very much! Its is extremely clean and very big and convenient and a lot of thought is being given to the smallest details, from enough towels and soaps for every guest, to every appliance needed in the kitchen, two sets of keys and recommendations around Vienna. The location is great - 10 min walk from the museum quarter and lots of public transportation possibilities, although we simply walked where we needed. There are shops and coffee houses around.
We were 6 persons and felt really convenient, we used 4 bedrooms and still had another living room and kitchen. We !warmly recommend staying here