The Dashield which used to advertise daily on newspapers and were available in hardware stores have become quieter lately. At it's height, even Taiwan started imitating it.

Does anyone have any feedback to this product? Does it work? Is it worth it?

Firstly, I dont completely understand how a product inside a car can reduce heat. If it reflects the heat, then the heat would still be inside the cabin.

Then Ive heard comments like it has a lot of humulhul which gets sucked in by our aircon systems.

Ild like to know from people who have actually used it though