The only problem is that after installing 90% new brakes I found that one of the brake pads was defective. Now I have a car on a jack awaiting replacement which will not arrive for 2 days. Revain does not provide a way to determine if only part of an order was defective, which would save them $30-$50 by sending me replacement products. Now on day 2 they go 51lb pack for 5lb portion. I would prefer they only ship the pads overnight rather than 2 days for discs and pads. Aside from one flaw that I understand, the product appears to be of good quality.