We spent 4 very nice days in Vienna in this flat. The building and communal parts can be a bit surprising at the first sight but it is actually super nice and convenient to discover the city center (10-15 mins to get to the center with tram at 2 min walk). The flat is super clean, well equipped and with very good instructions upon arrival. Just a side comment, unloading a car needs to be anticipated as the area is a market place and no parking directly close (the parking lot with the flat is super good but at ~10 min walk and the flat is on the 3rd floor (i.e. 2 floors to climb) with no elevator.