The place is great and close to a major train station from which you can get direct trains from and to the airport. It was clean and quiet and we spent an undisturbed time there. Since we had frozen food with us, we could also use the freezer and that was super helpful. Johannes replied promptly to all my messages and was very understanding with my requests. I am quite happy we chose his place for our stay in Vienna and would probably stay there again if the change arises.