Corinna's flat was as described on the web site, and Corinna herself was an excellent host. Our check in was very smooth, she was very responsive to our couple of questions, and she was able to let us check out a little later then usual.
The flat is in a great location, just a five minute walk from the Museum Quarter. It's a very funky area of Vienna with lots of restaurants and coffee shops. Corinna recommended Door No.8 for a special meal - an excellent recommendation. We ate at Ullrichs round the corner and Beisl in der Sigmundsgasse in (er) Sigmundsgasse. Both very good - and the latter especially as it's small and family run!
We found the flat to be very quiet, and slept very well - which was good following the heat of the day.
Overall - it's difficult to fault the flat, Corinna's hospitality and the location