This was a very nice stay. Clean, very quiet, well kept, good location, near tram/grocery store/restaurants, nice neighborhood. Roman was out of the country, but the maid was there to greet us and hand out the keys. Roman was reachable via the Airbnb site and responded promptly (he obviously checks frequently and regularly) when we had some issues starting the hot water heater (which he told us will be replaced in 2 weeks, so no worry). There is no air conditioning ; but the ceiling fan did a good job even with the 30C days we had (it does make a little bit of noise however... but I'm a light sleeper...). The window shades are not very opaque; you might want to bring an eye mask. There are plenty of mirrors in the bath room allowing one to see the back of his head when drying his hair. There is an elevator (appreciated since the apartment is on the 5th floor) and a washer on the 6th floor (ask the maid to show it to you). I would go there again, if ever I'm in Vienna again.