Deny's apartment was exactly the same as shown in the photos. Although a bit tiny for three people, the apartment was tidy and very well equipped.
Even though it is not close to downtown Vienna, it is very well connected to public transport such as: metro and buss lines that go back and forth from the airport to the city. Plus, there is a small supermarket 3-5 minutes away (walking distance).
Depending on what time of the year you visit, the apartment can get very hot; nevertheless, there is a fan and a blind that will make up for it.
I would definitely recommend visiting Deny's place: the views you get of the city from your window are really worth it.