We stayed in the apartment for one night and found it clean and hospitable. The location is great, central and with close proximity to good bakeries and coffee and many of the attractions that Vienna has to offer. The rooms were spacious and comfortable and the kitchen modern and very convenient. We had a wonderful time and the hosts were very accomodating - helping us with storing our luggage as we returned our rental car prior to the check-in hour.
Thanks for the wonderful hospitality!