Clemens provided us with clear instructions and pictures to check in on our own, which was fantastic because we got to the apartment after midnight, so being able to check in quickly and easily was really helpful to us.
The apartment is exactly as shown in the pictures. It's clean, tidy, and well-kept, with plenty of silverware, plates, mugs, dish soap, clean towels, etc., all available for you to use. You don't need to bring anything with you. All appliances are in working order.
The least pleasant aspect of the stay is the building, which, unlike Clemens's apartment, is really old and run-down. There was only one working light in the lobby, which meant we had to use the flashlight on our phone to get into the apartment after sunset…
However, this is no fault of Clemens's, and the apartment itself is so good and in such a great location that, despite the apartment complex, we're going to book with Clemens again the next time we travel to Vienna.