The apartment was really nice, very clean, and had tall ceilings with huge windows with white walls that made it extremely bright and cheerful. Oliver answered messages quickly and was accommodating for us when we got delayed on arrival and had to change timing for the check-in last second--he was able to change plans and still meet us at the door with the keys. We really enjoyed our stay here and were able to enjoy Vienna nicely because of it. There were trams just a block away and major metro lines about a 10 or 15 minute walk away, so we took advantage of all of that and were able to go anywhere in the city very easily and quickly. If we're ever in the city again we'd love to go back here!