I used the Summit brand last summer to paint my glass hood matt black. Hadn’t painted in over 25 years last using Centari. Used the Summit 2k primer and their recommend support products, followed directions, and I think it came out well for my first experience with a modern Urethane. Did notice it seemed to have stronger vapors and slower drying time than the old, simpler, Centari product. Seemed like good enough product for a driver quality car, and I would use it again. Also, they had what I needed in stock, and shipped it from Nev to Wash State in two days, faster than I expected. If I was doing a $2mill Hemi Cuda Conv, I would pay a professional to paint it, and trust them pick the paint they preferred.