The material is good but the manufacturing of them is not good resulting in a poor fit. If you have headrests they expect you to cut holes in the top of cover for the protrusions leaving an unstitched edge that will fray over time.I had to dispute the charge to get a refund as they would not give me one.
I recently tried to file a claim and it was denied. The warranty covers mechanical failures.My phone is waterproof and the mechanical seal failed and water got in a manufacturer defect which should be covered. They are selling something they misrepresent.