How to reply to the bad comment that hotel curtains don't shade?

Apologize to the guests in time and change the curtains for them. Or change rooms.

About hotel guests complaining that curtains don't shade the sun. To handle it carefully, first understand the reasons for the guests' complaints. If it is determined that the curtain is not shading, it is very important to analyze the reasons of the guest's complaints in time and solve the guest's complaints with empathy and sincere attitude.

You can choose, special circumstances, special treatment, apologize to the guests in time, change the curtains for the guests. Or change rooms.

Then we'll see how the guests are. The guest is God, the service industry, at least respect, as long as the customer's requirements are reasonable, we should try our best to meet them.