We stayed for a week in Daniela's apartment and she could not have been more helpful. The flat was well equipped, had everything we needed for a really comfortable stay and was spotlessly clean. We really enjoyed sitting on the balcony and the location was excellent in terms of both the train from the airport and tram lines into the city centre. There is a big supermarket in the same block which was very useful. We will definitely stay in Daniela's apartment when we next stay in Vienna and would recommend it .