This apartment / flat is ideally located, 15 minutes walk away from the Donersbergbruecke station on the S8 Line that takes you to the airport. The building is very quiet. There's a nice balcony.
BUT !!! We stayed at Christmas and the heating was shut down between 23:00 and 7:00. Bedding was terrible with one pillow for two people, old mattresses, very thin blankets, no nightstands. We used our coats to keep us warm at night !
Definitely not a place to stay at in the winter, especially since it's 70 euros per person per day.