Striker, I am a sporting shotgun guy not a tactical shotgun guy but that said I own 6 - Remington 870's and three Mossberg 500's. I have no experience with the Mossberg 590. My beef is with Mossberg quality control and repair service. Six 870's, two for twenty five years, one broken firing pin, thousands and thousands of rounds fired. All work fine.
One Mossberg youth 500 in .410 did not feed from the mag right out of the box, two trips to Mossberg to be repaired.
Another Mossberg youth 500 Turkey model in 20 gauge, the tru glow sight broken twice, cheap plastic, and the cammo finish worn off during light normal use. Mossberg replaced the sight twice but said they could not do anything about the finish.
A friend has a 835 turkey/ slug combo in cammo also with a tru glow sight, also broken twice.
My brother sent his 9200 back to Mossberg because the slug barrel shot two feet low and the sights could not be adjusted anymore. He also sent the vent rib barrel because it patterned like shit with the turkey choke. Mossberg replaced the slug barrel and enclosed a test target with three bulleyes but no other information about the bird barrel. He sent all four of his chokes for them to test but they only returned one with no explanation. That was two weeks and four E-mails ago but nothing from Mossberg. I would go with Remington. MIKE.