Everything in our stage was okay. Katharina seems a kind person, and she was always offering help if we needed despite we have not met with her. To be fair the microwave was not so clean, so maybe the service cleaning was a 6-7/10. The apartment is very comfortable and warm, it is located so much close to the central train station.
The feeling in general was like being in a true Airbnb experience and not in a hotel like many others.