Good communication from Ferdinand before hand. He met us promptly at the flat & provided a fabulous personalised introduction to the flat, the neighbourhood & Vienna.
The flat was beautiful with good facilities (great shower etc). The all-white decor may not be to everyone's taste, particularly if you have children, but we had no issues with our 2 year old.
Great location within Vienna, so close to Prater Park, nice walks along the canal, 10 minutes to the Hundertwasser House and only 20 minutes to the Ringstrasse and then to the old city. Only 10 minutes walk from the CAT (City Airport Train - handy for the airport).
Vienna was a wonderful place to visit & we'll be back. When we do we're very likely to come back to Ferdinand's flat if it's available.