It's not a sales pitch, it works. But, IMO it's not needed for a stocker to "putt around town". Now if your building a high performance motor and are going to thrash it to within an inch of it's life, go for it.

I work just down the street from EMBEE PERFORMANCE in Santa Ana, CA and they coat new pistons with different kinds of thermal coatings "by the palate". They do the coating for all of the custom piston makers in Orange County.