My first-hand experience is only with their Best Of Show. Nothing nice to say about it really...not user-friendly for a liquid, OK looks but nothing special, doesn't last very long, doesn't release contamination readily, doesn't stay slick. Simply a ho-hum/borderline-yuck product IMO. My late father liked patronizing Griot's, and I went through a few bottles of the stuff (and could've had free LSP for life had I wanted to use it) before convincing him my other LSPs were better ("I dislike it so much I'd rather pay for something else!"), so it's not like I only used it once or twice.
But hey, that's just me and some people like it. I just don't know *why* :nixweiss For a mailorder liquid, I'd *MUCH* rather use Malm's.
A friend uses their paste and it never looks special to me. Guess that's not much of a comment, but I sure never thought I oughta try it instead of one of my usual LSPs based on how his vehicles look (and they usually look like they need redetailed to tell the truth...maybe it's not the wax

). I do give GG props for adapting the "twist-up" dispenser idea, that they probably got from Autopia.
Sounds like you will be able to offer an opinion about the sealant, and I'l like to hear what *you* think of their BOS. Hey, it'd be a boring world if we all liked the same stuff