My daughter, niece, and I stayed at Gerhard and Nicole's place on our way to Italy for only 2 nights. Gerhard was very kind and met us, even though we arrived quite late. He helped us with our suitcases up the stairs and was extremely friendly and informative. The apartment was clean and as pictured. The windows and skylight were great and the area of town was full of interesting places to explore. Next time we will have to stay longer in Vienna.