The flat is lovely, and the location is fantastic. A lot to discover within walking distance and a safe neighborhood.
There is construction in the building and the house next door; during the day you have constant construction noises.
The internet is fine, but if you are a couple that plans to do home office from there is not optimal. We had trouble having a good connection we needed to use our cell's hotspot. This is, of course, not the host's fault, but it is good to know if you plan to work from abroad.
The toilet on the first floor was not working; the host quickly sent a plumber the next day to fix it. I said I did not need it, but they still sent it, which I found pleasant and proactive from their side.
One has to pay a 20€ fee for check-in after 8 pm; this was not mentioned in the description of Airbnb but instead communicated after the reservation was made, which I did not find transparent.
Overall a great experience with minor details that could be improved :)