I've used this product extensively on a '69 Z-28 restoration, and have had good results. I have not experienced any of the quality issues stated in the other reviews, and agree with the review by CDK concerning its application and amount used. My only complaint would be that I wish the product went a little farther than it does. I did the radiator support with one can using black primer as the base, but would have liked to do one more light coat before the can ran out.