The appartement is located in a very nice part of Vienna. Cip offered quite a choice of leaflets about places to see in Vienna. Check in and check out procedure was very easy. There was only the problem with the humidity in the appartment. I saw only later that this was already mentioned in other comments. It is also true (as mentioned as well in another comments) that the pillows could be somewhat more confortable. Apart from this everything was fine and we enjoyed our stay in Vienna.