When I was growing up, these seemed to be ubiquitous and I never liked them. They seemed overcomplicated for the purpose, and created a gross and smelly area under the sink that needed more cleaning.
I haven’t had one in years, as a simple sink mesh does the same job. But I don’t really know how other people are. Are under sink garbage disposals still common, and commonly actually used by people here?
Didn’t grow up with one, but consider it standard now. There should be an organic stream to waste disposal. Much more green to send your plate scrapings to the treatment plant than to wrap them up in plastic and bury it in a landfill.