We get the similar version of this story every now and then, here, and, I've seen it at other sites, as well. My casual observation is that it's usually a Browning O/U that is being discussed, followed by a Red Label. I can't remember seeing a Beretta complaint, other than folks bitching about how it fit (why did you buy it?)
You usually get what you pay for. You can eliminate 99.9% of any complaints you might have, by simply buying a gun with double triggers, and learning to use it.
The single trigger is a bug-a-boo, and it is not always the triggers fault-I've met people who believe their gun should be able to fire everything from the latest 3" magnum store bought load, to some mouldy stuff grandpa loaded back in the 1950s. It usually doesn't work like that, and they can't understand why.
Best,
Ted