I buy a lot of things on Amazon and a few things on RA. I wouldn’t say that everything has gone perfectly, but the number of problems I’ve had is minimal and Amazon has always had perfect customer service. Also, Amazon will always have some great deals on oil. My only concern is that their existence has hurt local merchants. But to be clear, I have had my fill of the chain auto stores, like Advance and Autozone, where the prices are through the roof, and an idiot behind the counter gives you nothing but wrong answers.