This is a fantastic apartment with great hosts. The location is perfect....one block from the Secession building, a couple of blocks from the Opera, an easy stroll to most anywhere in the city. A hardy walker could even walk out to Schonbrunn.
The apartment was ultra clean and easy to use. Eva was extremely helpful with getting settled and making sure that all went well with checking in, etc.
I recommend this apartment without qualification, and I will certainly try to stay there again when I next come to Vienna.