Myself and my friends were very comfortable at Chris and Max's apartment. Chris met us at the beginning and end of our stay and responded quickly to any questions we had during our visit. The apartment is first rate and I would certainly stay again. Vienna is one of the nicest cities I have visited and the apartment is well placed to explore the city whether on foot, tube or bus. A hop-on hop-off guided tour bus stops right outside the apartment and is ideal for taking a tour.
Highly recommended !