I don't know that there are very many here who have used them. I can say that the items I've gotten from Warrior Products have been OK so I'd say give them a try.
I have the Warrior Fender Flares front and rear, metal tube, and they are super solid. I love them, and their product seems to be high quality to me. If you're getting them for cosmetic, I would say they would be good quality for that.