Just bought rotors and pads front and rear from RA and found the shipping cost decent at $93CAD given the weight.
All in, the whole thing was $409CAD. Still cheaper than Prime shipping from Amazon for the identical P/Ns.
I order from RA only if they have the product/brand/PN I'm looking for. I don't buy just any random stuff/brands they sell.
If the product is bad quality, I don't fault RA - they just sell product. As long as they sell at good price, deliver what you order and reasonably fast, not much you can blame them for.
So far so good.