I shot one on a couple drives in Scotland.
It was nicely made.
Lively enough for driven grouse.

But for that task, a 12ga O/U is overkill in my view.

I liked that you could use them as traveling guns without concern for ammunition.

Didn't see how finished the inside was.
The owner was very happy with it, and shot it for everything.

Out there doing it best I can.