Gerta is a very friendly and helpful host. She even waited for us at the CAT station and guide us to her apartment on the first day. She is very committed in making sure that my mother and I stay comfortably. The apartment is very nice, comfortable, and is exactly what is posted in the website! I could not think of other place that is so nice and convenient. Overall I have no negative comments on this place. This is a must-stay place in Vienna! Thank you very much, Gerta!