I decided that the best way to really compare for me would be to look at my Amazon purchase history and look now at Jet and compare. That way I look at the stuff I really need.
Almost none of them are available at Jet. I'll give them some more time to start carrying all the basics.
It doesn't really compare to Amazon...yet.
Amazon doesn't really focus on basic everyday items, which is why on Amazon you'll rarely find drinks, tissues, toilet paper, paper towels, baby wipes, detergents and etc in regular sizes (or at regular prices), if you find them at all.
Those basic products, the ones you shop for in-store on a weekly/monthly basis (aka replenishables),
is what Jet is best at (though they are still limited),
and what you should be looking for.