The majority of products you find on the shelf at Wal Mart or an auto store are watered down junk. This includes Chemical Guys, Turtle Wax, Meguiar's, and similar. Adams is "okay" but they are overpriced. Griot's is also overpriced for what it is.
If you want the best products, you need to purchase from the same places the pros do. PDP, Pro Car Beauty, and Kleen Rite are the places I get my stuff. I've also seen Suds Lab on the shelf at Wal Mart recently and they make great products. I just don't know if it's a watered down version or the real deal.