I have installed Wagner full ceramic brakes on my 4 cars for the last 5 years. I can tell a big difference in braking performance compared to OEM or bimetallic brakes. I've never had a warped rotor with Wagner all-ceramic brakes. I have had many warped rotors with other non-ceramic brakes. My research shows that while all ceramic brakes wear out a little faster than bimetallic brakes, they stop better, handle heat better, and wear out the rotors less so they can be reused more often between brake changes, saving money in the long run. . My experience shows that all of this is very true. All Wagner ceramic brakes appear to cost between 1/2 and 1/3 the price of equivalent brakes at auto parts stores.