Based upon many of the comments on this Board, I had the truck Opti-coated this week and just picked it up. Looks absolutely great and for many of us in States that use mag chloride on the roads in the winter, I think it makes even more sense. This said, it was not cheap ($749) and when I picked it up I was taken a bit aback when paying and there was a line for a gratuity. I didn't know if this was standard for high end detailers but when I go to the quick touchless wash with the guys that do a hand dry, I always give them $5-10. But then they are most often minimum (or below minimum) wage employees and the cost of the wash is more in the $20-30 range. I ended up clicking on the 15% gratuity button but was thinking about this during the drive home. They did work on the truck for a solid day and a half and I am very pleased, so that's what I decided. Any thoughts (as I am going to have my wifes 335 done by the same guys next week)? Thanks in advance.