My wife and I stayed in Katharina's Vienna flat as part of our honeymoon. Katharina was very friendly by e-mail and always responded promptly. Her boyfriend, Peter, met us at the apartment and showed us the place. He gave us some suggestions on area restaurants and other sites in the city and brought us a clothes drying rack when we told him we wanted to do laundry.
The flat is spacious, modern and well-decorated. The bed is very comfortable! The flat is in a great location, half a block from Westbahnhof, one of Vienna's main train station. The station has a number of shops and restaurants for greater convenience.
We had a wonderful time in Katharina's flat and would definitely stay there again!!