I'm not defending Cooper. It's not a brand I would buy again. I've put Cooper on a couple of cars (Escapes). I gave a set to two of my kids as a present, they did not reach their stated mileage warranty, not even close.
That said, I find it interesting that people openly condemn a specific product with no practical experience with said product.
Saying I've run a particular product within a manufacturer's line, and it was bad. Therefore, all of that manufacturer's products are bad. This is akin to saying, "I used to drive a Fiesta, it was garbage, so you shouldn't buy an F150 because it is junk."
First-hand knowledge is critical when stating an absolute, and making a recommendation.