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?
There are portable washing machines that hook to a kitchen tap and drain to the sink, had one when renting a place with no laundry on-site and just hung dry everything. So much better than going to a laundromat weekly, and paid for itself too.