It is possible to get one that runs with a short barrel and US gas block, but it's harder and mostly ones that have been made with great care and some tinkering run well. If you get one with the Italian "dropped" gas block, odds are it will run fine and be reliable with no fuss at all(assuming it was assembled correctly of good parts).
I can't say for sure, but I feel the rather straight op-rod of the Beretta system is likely to create a rifle far more robust and tolerant of various ammunition compared to a stock M-1 and even more so with the bent op-rod shorty.
Yes, they are louder than a full-length M-1, but in this age of muzzle-brake shorty ARs and effective hearing protection, it's not really an issue. Recoil isn't much more than a normal M-1 and if you add an optic (since you are already committing a crime against fussy collectors, you might as well) the weight can help bring recoil back to normal. You can also run the Beretta muzzle-brake that matches the gas block.
Ian's runs the US gas block I think:
[ame]https://www.youtube.com/watch?v=4qaTRwq-IRc[/ame]