I started using Meguiar's and Chemical Guys products (still do, nothing wrong with them) but then tried a mystery box from Adam's just for the value (I got about $60 worth of product for only $40) and I've been hooked ever since. I like how Adam's has one item for every task and doesn't have 1000 different quick detailers or shampoos, it gets confusing with some of the other brands. Imo, it seems like Adam's products are more concentrated but also more expensive, about 2 X the competitor's prices but you are paying for premium products. My favorite products are super vrt, tire shine, and the glass cleaner.