No, I haven't owned a 391. I shot one for a month, and seriously considered buying one. It is a fine shotgun, as shootable as an 1100, and gas system is in the long run more rebust than the 11xx systems, as you say.
However, for the many thousands of rounds through my 11-87, I've seen very few breakages - two o-rings, one piston, and a detent spring to be precise. Not bad! When we're talking reliability, I've seen more expensive shotguns perform far less consistently.
Oh, and when Beretta makes the 391 in 28, just PM me. I can always make room for another 1100 in 28 or 410!
However, for the many thousands of rounds through my 11-87, I've seen very few breakages - two o-rings, one piston, and a detent spring to be precise. Not bad! When we're talking reliability, I've seen more expensive shotguns perform far less consistently.
Oh, and when Beretta makes the 391 in 28, just PM me. I can always make room for another 1100 in 28 or 410!