Since you put three evers - Amazon went public on May 15, 1997. If you can say it hasn’t improved since 1997, with a straight face, I’d be convinced you’re a few bats shy of a belfry.
Amazon wasn’t a service. It was a retailer. And I can’t 100.0% guarantee that I won’t get a counterfeit if I order today, so I don’t consider that an improvement, overall.
Shipping got way faster though
If we're using the metric "garbage I was tricked into purchasing arrives faster", then yes, Amazon is a tremendous success story.