Angelo Zoli has made O/Us for several US firms; I believe that he made the first batches of Weatherby O/Us, including the ones called "Athena".

I have never had one, so can't comment on reliability. They LOOKED like very nice guns; the one I handled, a 20 Magnum (Aren't they all?) felt right to me. Perhaps somebody else has used one.

There are MANY Zolis in the Italian gun industry.