This was a wonderful apartment when traveling with a group. There is an upstairs and downstairs so it is very private. We loved the living room as it was very easy to lounge around, play cards, etc. The apartment was spotless and no personal belongings which is always my preference. I was worried the location would be too far away but we found it very easy to walk and there were a lot of convenience stores nearby. We didn't get the chance to meet Ferdinand but he was very responsive and it was easy to check in with the code...no keys needed! I would note that there are not a lot of amenities so be sure to bring your own shampoo, etc. I don't think owners should be expected to provide these but sometimes people assume :) Overall a great stay and I would come back to the unit in the future when visiting Vienna.