The flat was nice and clean. The tramstation was not far away. That was the good part of our stay. The problem was that the door of the balcony was hard to open, which I texted him. After that he accused me of breaking it. Even though we weren't at the flat anymore, he wanted to stop by and check it. He recorded the whole visit (at least that's what he said) and couldn't find anything broken.
Also you are not allowed to smoke even on the balcony, which was not quit clear to me by the discribtion, that it's a smoking free area.
Another thing, which was quit annoying, when you have to catch a train, is that he ran late for the check-out and only let me know when I asked him where he was.
Other than that he was polite and nice.