Very good stay in Walter's apartment, very functional and well equipped, clean, ideal for 4 people, very quiet, overlooking a pedestrian street. Easy access from the airport (one change), very well situated, 200 m from a subway station, and 300 m from a bike station, 7 minutes walk for the museums district. Very good welcome from Thomas, he gave us many indications about Vienna, things to do and places to go, he was very nice and helpful !