I can only repeat the comments of others that I read before booking this apartment: a very clean, beautiful little flat well equipped with everything you might need during your stay. We stayed there with our 2-year-old son and loved buying great Austrian produce in the organic shop around the corner and cooking it in the apartment. One of the world's best zoos, the Schoenbrunner Tiergarten is only a 5-minute walk as well as the Austrian Emperors' castle Schoenbrunn with its beautiful park in which my husband jogged and was greeted by the famous Wiener Fiaker every morning. (For me, climbing up to the 3rd floor to the apartment with my son was jogging enough, but it was certainly worth the view!)
I also loved the simple, clear and uncomplicated way Emmeran and Katharina communicate with us.
The apartment is in one of the best neighborhoods of Vienna and the street is quiet at night. There are many shops, cafés and restaurants nearby.