Christian's place is excellent. It is very large, well appointed, and was perfect for me, my friend and my daughter. It is a great location from which to explore Vienna. It is across the street from a U4 station and we used that extensively to get around Vienna on our 5 day stay. There are grocery stores on the same block and restaurants nearby. Although it is on a busy street, the apartment itself is very quiet. Even though I had the windows open there was absolutely no noise from outside. It was great and I'd be very happy to stay there again.