I had a very pleasant stay at Siu's place. She's got a really beautiful apartment in one of Vienna's best districts (quiet, green, and still not far from the city center). Bus & tram are right around the corner, so wherever you want to go, you can get there fast. Siu is a very nice lady and a great host; she made me feel welcome from the start and I really enjoyed talking to her. Vielen Dank, Siu! :-)