It was overall a nice stay.
The apartment was spacious and the bed comfortable.
Only issues we had were with the wall heaters: in the first apartment (same host) when we arrived in the evening, after our 20h trip, we had to wait for over 1.5 for maintenance to come and make it work because it was super cold. In the second apartment, a week later, we had to deal with another wall heater which, because it had a lot of dust inside, made the smoke detectors go off and we had to open all the windows and door to clean the air and then keep it almost off till the next day when they came and fixed it.
All of that was a bit annoying to be honest, but Phillip, the host, was pretty nice and quick to respond through the app.