I stayed at Georg's apartment for 12 nights while doing a fellowship at AKH hospital. The apartment was clean and exactly as described. It is a 5 minute walk from the hospital, and is also within a few minutes from bus and train stops. It is ~40 minute walk from the Opera house and museums in the city center, ~15 minutes by buses. It is perfect for someone planning to work at the hospital or in the surrounding area. Georg was extremely welcoming. He responded to emails quickly, and provided me with a list of restaurant and activity recommendations. One note, there was construction in a nearby apartment during my stay. I usually had to be at work by 7:30AM so it did not bother me, but if you are planning to be around the apartment in the mornings or during the day, I would inquire if the construction is completed.