You asked for experience. I've owned and used a 12 gauge 870 wingmaster for over 30 years now, upland and waterfowling. With not a single platform related problem ever. I take good care of my guns and it's as nice looking now as it was when I bought it.
I inherited an 870 express magnum model after my best friend died last year. We had a field day with the kids and grandkids not long after. The express would lock up on cheap winchester shells, the wingmaster didn't and never has cared what you feed it. I've since polished the chamber on the express so who knows.
I can and will in good conscience, based 100% on experience with an 870 wingmaster recommend it for any purpose anywhere, any time. Given even minimal care.
Its all downhill from here. Except the parts that are uphill.