We enjoyed our stay with Anna and Paul very much. They have a lovely flat which is very spacious and cosy. It is only 4 stops from the city centre with the U-Bahn and a 3 min walk from the stop - so easy to get around Vienna. And they are not kidding about the breakfast - they really take care of your vitamins in the morning ;-) The service they provide is definitely a big plus compared to some other hosts. Thank you very much!