I can't speak to the longevity of the paint, I've only had mine for a few months now. But I will say that the finish is great on the Konigs. They look like a matte grey color, but in the sun they have some "depth". I wouldn't call it a sparkle, but they're definitely more than matte.
I've been hitting them with some hybrid ceramic wax (Meguiars / Turtle Wax) on occasion and that helps with washing the brake dust off and keeping the finish clean