Caroline's apartment was clean and very spacious. She communicated very well before, during and after our stay- even sending us a document of things to do, where to eat and tips on Vienna. She was even kind enough to organise someone to meet us at the apartment and explain everything, as she was away when we were in Vienna. The wifi worked perfectly and we were only 15minutes walk from the metro.
As there was three of us, I slept on the lounge (which had been fitted with a mattress on the top) and my parents slept in the double room. We weren't aware that the bed fitted very tightly into the room, so you were only able to access the bed from one side.