My car is a 2005Acura MDX with 25K miles. The brakes are at 5%. Dealership wants $700 to change the front and rear brakes. My local mechanic says dealerships usually use semi-ceramic brakes. He also isn't sure if they'll change the rotor. He says he will charge me $500 to change all the rotors and give me full ceramic brakes. Since I know little about cars, I would like to get more opinion before choosing.