We spend 4 days in Wien during last Christmas holidays and we stayed in Chris Lane house. It is very comfortable, full of light (thanks to big windows in any rooms) and full of any things we needed (we had dinner every day at home and we cooked by our self). The house is very near to the city center (5 minute walking far from Karl platz) and close to the tube station. Chris is a very kind host and the comunication was very simple.