Better place to ask is a car detailing forum.

https://www.autogeekonline.net/forum/
https://www.autopia.org/forums/

It's fine, but hardly the only good product line out there. I like Gyeon products.

You can have a wider selection on-line, e.g. https://www.detailedimage.com/

DH got a new car and is really into detailing. Is Chemical Guys the best? There’s a detailing store in our area that exclusively sells this stuff, so I’m just curious if it’s legit. Thinking of grabbing a couple of bottles for Christmas, but the stuff is not cheap!