Luisa is so helpful : she told me how to join the train station and the airport. She waited for me and allowed me to check in earlier. The bedroom is very very clean, spacious with modern decoration. The beds are good and it is very silencious when the windows are closed. The shared kitchen is full equiped with a little fridge. The metro station is 2 minutes by walk, very close to the center of the city. It is even possible to go to the center by walk :) perfect place to stay a few days to visit Vienna.