Werner's place has a great location, adjacent a wide commercial street with a lot of shops and restaurants and 15 min walking distance to the train station.
I was there for work and was not very concerned with perfect lodgings, but still I was unpleasantly surprised: the house is not very clean, the kitchen and the bathroom moreso (there was no hand soap nor a trash can in the bathroom with the toilet in it, there was in the one with only the shower) and it was a bit stuffy and smelled of smoke. I knew from the listing that my room was a bed in the corner of the living room and that was ok with me, but Werner did not mention the room adjacent to the living room was a guest bedroom: I thought it was a small storage room so I opened it to put my luggage in it and was extremely surprised - but not as much as the guest inside looking back at me in fear! The guest bedroom only connects to the living room, so the guest had to pass the living room in order to access the rest of the house. Which was fine, if unexpected. What for me was a problem was the lack of privacy: the listing said that the living room was a common area from 9h-22h but that we could communicate in order to ensure privacy, etc. On at least one occasion I was very tired and wanted to sleep in the afternoon while the host was there watching loud tv. I put on my eye mask to sleep and asked if he could turn the tv volume down, which he did, but stayed in the room. Since he did not react to me obviously trying to sleep, I did not feel comfortable to ask him to leave so I could rest. Overall, great location and I think it would work if the house was cleaner and the communication was better, but as is I would not return.