Very nice and comfortable apartment with a great view. Silent surroundings, even if some distant traffic can be heard on the balcony or with open windows. Good AC which run very silently.
Perfect location if you have a meeting at the Austria Center and only a short walk from the VIC and the U1. However, don't expect "old Vienna style" around here, this is a business district (with a big and nice park on the other side).
Communication with Christine was good and check-in very easy.