I enjoyed this apartment very much.
I came to follow a conference for 10 days, but was also working a lot from the apartment for my work place back home in Tucson, so I spent a lot of time there and it was great. Very stylish, quiet, great internet for videoconferencing or remote computer work,... with all the amenities and kitchen setup you would lik to find in an upscale place..
It is super-convenient! The supermarket is really nice 3mn away, the conference center 5mn door to door, and Donauinsel is so close with a pedestrian bridge for a good walk in the early morning.
Wand to attend a conference and have your own home away from home? Just book this place. The host was fantastic communication-wise too!