Check in was super easy and Markus was a responsive host. Unfortunately, we had a problem with the cleaning company that takes care of the apartment. The flat was so dirty when we arrived that we had to clean it ourselves. Plus, the shower was in need of some repair (the shower stall was leaking water and the shower support a little loose).
I have to say though that Markus really apologised for what happened. He promised to returned us part of the money due to the cleaning issue and tried hard to make up for the inconvenience. I honestly believe he was not aware of the conditions of the apartment and I trust he will fix things for his next guest.