I enjoyed staying at Dominik's. The room was clean and comfortable. The bed is amazing! It's by far the best mattress I've slept on in all my Airbnb stays (I've stayed in 11 places on my travels so far). The location is also convenient. The underground station for the U4 line is within walking distance. From there, it's only 3 stops to Schönbrunn (the Summer Palace) in one direction and a few stops to Karlsplatz in the other direction. From Karlsplatz, the state opera, Albertina and Hotel Sacher is within walking distance. There, you can also change to other underground lines like the U1 etc. All in all, I enjoyed my stay here and would definitely recommend it to visitors to Vienna.