I replaced my Whirlpool disposal last year. It had a good run since it appeared to be the original one that came with the house. Replaced it with the exact same one off Amazon for a good price (made in the USA to boot!).
Any Insinkerator made units seem to have a decent run life. I believe that is who makes the Whirlpool and Kitchen aid garbage disposals.
Ones that I would recommend are ones made by Insinkerator ( Badger, Evergrind, Whirlpool/kitchenaid, and Insinkerator ). Insinkerator still makes nearly all of their models in Wisconsin with about 80% domestic content
. Nearly all others seem to be rebrands from Anaheim manufacturing (Waste King, GE, Fridgiaire, Barracuda, Moen, new Kenmores, and many other generic no name brands). Those all come from China and had a previous recall
for ejecting metal objects out of them.