I’ve got a couple of Mossberg 500’s. VERY dependable. Have one outfitted with the Pachmyr Vindicator kit for home defense, and another with the long stock, for work in the field dealing with varmints and such (two legged and four legged).
These have been the most affordable, reliable tools in my arsenal over the last 40 years or so.
Yep, they’re hugely popular for a good reasons.