Sibylle's place is very clean and beautifully and thoughtfully decorated. It is close-by to several forms of transport, so it's very easy to get around. The building and area are quiet and there are several supermarkets nearby, including the Billa at Praterstern which is open late and also on Sundays. Sibylle was always quick to respond and showed flexibility when I had to posptpobe my flight. I recommend a stay at her place and look forward to staying there again during my next trip to Vienna.