American Hunter and American Rifleman have a good write up in them this latest issue. These are both NRA magazines.
They are supposed to be light and slim in the forend. I am waiting till they come out with a wood stock. To me they seem like the best option available. 3.5" in a gun under 7lbs will likely kick a bit, but should be less than a Benelli due to the gas system. Also cost less than a Benelli. They have the speed load and unload feature and a magazine cutoff.
I think very shortly they will be all the talk once people start getting them in their hands and word spreads.