i used to own an 835..shot it for 2 seasons when it was actually functioning. i had problems with the ejector screw falling out....even after being affixed with Loktite. it STILL fell out.
i also had a problem with it trying to feed 2 shells out of the tube at the same time. by this i mean that the first shell would load into the mag and the second would follow it out and either jam the feed or just fall out into the mud.
it was big..heavy..cumbersome..and it felt like i was shouldering a 4ft long section of 2x6 instead of a gun.
the only positives i can say about that gun was that it had a thumb actuated safety and that some sucker paid me 100 bucks for it when i sold it.
now, it sounds like you are thinking about spending around 250 for a gun. why even consider the stoeger knock-off of the Nova? don't get me wrong...i have a Stoeger Condor O/U that i love and the Stoeger2000 is supposed to be just as good a gun as the SBE it imitates. i am sure the pump will be just as good a gun. why not get the benelli Nova and be done with it? it doesn't cost much more.
Friends Don't Let Friends Shoot Mossbergs.