We had a great time in Vienna living at Cecilia’s apartment! Really the location is nice. Just couple of minutes by walking to Nachmarkt, Secession and Karlsplatz; 10 minutes by walking to Opera and 15 minutes to Saint Stephan’s Cathedral. Everything you need for everyday life you have at the apartment. We stayed with my wife and baby and felt totally like at home. I advise to stay in this apartment, be sure you will like it!