There was an undisclosed €3 charge per night upon checkout. There was also construction starting at 07:00 and 08:00 outside of my room with loud workers and loud work.
Had I known about these things beforehand I would have been okay with them as I would have not been surprised by the additional payment and would have asked to be on a different floor. Instead I was woken up at 07:12 by someone sanding the other side of my wall, music, and talking. When I checked out I was told it was okay because they started at 08:00. As though that made it better.