Be ahead of complaints. Make a schedule for regular checks of the rooms (bi-weekly/monthly). Check if curtains close well, if toilets don't have water running, if all lamps and tech stuff (like TV,...) works as expected.
By checking the rooms you can lower the complaints and get a better grip on the maintenance. It's better to have a constant, plannable repair flow, than to have an emergency fix in the middle of the night, causing extra costs and annoying your customers.
Make sure that light in front of the main mirror in bathroom or room is placed close to the mirror and not between the head of the customer and the mirror.
Light for a mirror should always be in front of the face, so the face s clearly visble. Placing light behind the head makes it impossible to put make-up onto the face in a proper way.