I have very little experience with shotguns, but here's my firsthand experience with the montefeltro.
I bought a lh 12g montefeltro last fall. I shot a rem 1100 for two years before that. I find the montefeltro much easier to clean, but I've had several problems with the gun. The first time I hunted in the rain, the stock split along the side (benelli offered to replace at no cost).
Also, unless I coat the bolt parts in oil just right, the bolt sometimes won't lock and the gun doesn't fire. Thanks to advice from this board, I've experimented with the amount of oil and have reduced the frequency of failure to about 1 of 75-100 rounds from 1 out of 25. That said, its a bummer when that one shot happens on a flushing valley quail.
hope this helps,
paul