I have a friend that has a Stoeger, albeit the 2000, not the 3500. He's never had a issue with it, which is kind of remarkable since is isn't the most diligent person when it comes to cleaning his guns. And we hunt salt marshes! I believe that the Stoeger is the same design as the Benelli. However, it is not a Benelli. Stoeger is an importer, which means that they go to a manufacturer, spec out a gun and tell them the price they want to pay and how many they want. As with all price point guns, corners are cut. Typically, the guns are not finished as well as their counterparts that carry the manufacturer's name and warrantee. All guns, no matter the manufacturer, are prone to break downs. However, the frequency of break downs typically increases with price point guns. Doesn't mean that you'll have a problem, just that the odds are greater that you might have a problem.
The 11-87 has been around for a long time, with good reason.
I feel slightly sorry for a man who has never patterned his gun, who has no idea how far his chosen load will retain killing penetration. But I'm extremely sorry for the ducks he shoots at beyond the killing range of his gun and load - Bob Brister