I buy extensively from Amazon across a number of product categories. My order history shows purchases as far back as 2005 (though I cannot be sure given I remember buying things in 1998 while in college, probably on a different account). During the intervening 20 years I can count on one hand the number of products I ordered which weren’t legitimate, matched my—admittedly moderate expectations for any commercial product—or included overhyped reviews.
I’d be interested in a service like yours if I could understand how the cost would cover itself in benefits.