Great breaking improvement over old brakes. Stopping distance and bite is much greater. Bought my Armada in Oct-04 and I live in Denver so all this mountain climbing has been hard on my brakes so the shutter has come every 6k miles. after taking it in 2 times the 3rd time they called me and said the final kit for me was in. They did tell me that if you are not hard on your brakes the shutter might manifest itself every 10-12k miles or so. They were completely honest about everything up front.