We have two:
870 Express Magnum and a Maverick 88 (Mossberg), both work and have given us no problems. We bought each used. The Maverick had some rust on the barrel. It was cleaned up and refinished with some rattle can, shake n bake, ceramic base paint (good stuff). The Remy has a new walnut stock set and a Rem-choke barrel installed; I wouldn't feel under gunned kicking up some quail with it
Regards,
Greg