Corinna's place is well located, in a quiet area, 3-4/7-8 minutes of walking (depending on what tram/bus you need to take). The apartment was very clean and spacious. It has everything you need for your stay. As for Corinna, she definitely deserves the superhost title. She was very friendly and answered to all of our questions (even recommended us a good, cheap and safe parking place 10 minutes away, restaurants and places to visit).
I highly recommend her place and for my next trip to Vienna, if the apartment is free, I know where I will stay. :)