If Meguiar's made their Professional Detailer lineup a little more premium, they'd get the easy nod from me. There's affordable pricing, and then there's pricing that's so low that it makes you question what's wrong with the product.
Two Meguiar's products that fall into the "priced too low" category for me are D101 APC and D140 Wheel Brightener. My wholesale price for a gallon of D101 is $13. Compare that to CarPro Multi X, which is $74 for me. That's an insane discrepancy for two products with similar dilutions. It makes you immediately think - "why is a product like D101 priced so low?". Is it the product safety? I know D101 has a 3 NFPA Health Hazard rating, which is extremely high for a simple APC and is one reason I no longer buy it. Pricing gives off a very powerful message, and I think if Meguiar's replaced a few products with products at slightly higher price points, it'd do them a world of good for their brand image.
As far as CarPro, a giant red flag for me is the fact that their SDS sheets aren't readily available online. After peeling back the labels on some of their products to read the health hazard warnings, I think I understand why. Some pretty intense health hazard warnings