Has anyone had this treatment done? What are your thoughts about how it turned out?

f youíre crazy about your curls but want more control, and less frizz, ask your stylist for an Opti.smooth cold-smoothing service. If youíre dreaming of silky smooth hair thatís permanently straight, ask your stylist for an Opti.smooth heat-straightening service with a flat iron.
i was thinking about having the cold one done to my hair so it will be more manageable...does anyone know how much it runs?