"Au Serail" manages to capture the spirit of Vienna and its classical roots perfectly. From the poster on the wall, to the piano in the living room, everything was authentic and managed to immerse us in the city's timeless beauty. The place itself was very clean, warm, and cozy, so you feel right at home the moment you step through the door. It's 10 minutes to the U4 line, so that takes you a total of 15 minutes to Schonbrunn, and about the same to Karlsplatz, Schwedenplatz, and Stephansplatz, where Vienna's heart beats strongest. There is nothing more to say, a great place to stay with everything needed, highly recommended.