Excellent location, all the main attractions in Vienna at walking distance, and only 2 minutes from the bus to the airport. Informal atmosphere, clean, good heating. Supermarkets, shops and bars in the area, very convenient. Not sophisticated nor luxurious, but comfy and cozy enough. There's no lift, and it's on a 4th floor, which can be a little hard if you're bringing big luggage. Rainer & his flatmates were very kind and hospitable, made me feel at home.