I had Modesta, a brand of ceramic coating put on one of my vehicles. Lasted three years (the car is stored in the winter) and prevented all swirl marks on the car after washing (I do by hand) and I don't wax after a wash. Finish looked effectively new after three years. That said, the car is garaged after use. I do use a rinse-less wash product which improves shine.
Worth it? Not clear, but the Modesta did work as advertised. BTW, I think if it does afford chip protection, it is minimal.
