I can't say i am expert at detailing but I have tried a lot of products and, for me, chem guys worked really well. The black wax and the buttery smooth wax are awesome.
I like how easily it went on and buffed out. no haze and I really like the smell. I know that is not the best way to judge a good product but I care about it. My issue is I always seem to wax when it is too hot. Even in the garage shade it is still on the hot side. I also overuse products so I have problems with haze and product not coming off. Chem guys is so smooth and viscous I do not have an issue with overwaxing
My buddy LOVES griotts but i tried their leather conditioner and it stunk up the car.