I've been using "Titan" disposers, made in China, purchased at deep discount at Costco. One lasted about 20 years. I think is was .75 hp. I replaced it a year or two ago with another, 1.25 hp, which is running well. It's a T-1060. It's quiet and runs well. No complaints. Cost was about $80 at Costco.
These disposers are made by Joneco Corporation, and are sold under a number of brands, including "Waste Maid". Seems to me I've seen American Standard labeled disposers are are the same at the Titan T-1060. I believe I've seen "Joneca" on the boxes.