I've stuck with products that AG sells-- simply because they provide this Forum as a means for extensive discussion about those products. Contributing members (as well as mods) have been an invaluable resource to me. Tons of how-to videos, product reviews, and just Q&A in general. An amazing bunch of "regulars" contribute that have been MORE THAN HAPPY to help me out with product selection and advice in all aspects of detailing (usually within minutes of my posting). If you're looking for products for specific applications at specific price points, speak up! I bet you'll get dialed in in no time. And they also have some kind of price match guarantee (I don't recall the the details at the moment).