Nice, spacious, clean apartment in a quite neighborhood. Very convenient location next to a train and subway stations. 25 minutes from the airport on a direct RJ train, less than 30 minutes to the center of Vienna on a subway. A supermarket is in the same building plus a shopping mall next to the subway. Lots of restaurants with good food. We did not see Rainer but check -in and check-out were very easy. Communication with Rainer was very efficient. We had a pleasant 5-night stay at Rainer's place. Highly recommend.