I own a Browning Silver and a Winchester SX3, probably will own a Maxus if my LBS gets a camoflaged one in sometime soon. I like how the Maxus feels but haven't had a chance to shoot one side by side with my other shotguns. I have several friends who really want their own after having shot the Maxus, so I take that as a positive endorsement. The internals are different from the Silver, much more Gold-like and the pistol is of a different design. My LGS guy says that he has shot light and heavy loads through his without a hitch, plans on duck hunting this year with his.
I sold a SBE to fund the Winchester and can tell you that it is a better gun for me. Much easier to shoot, recoils easier and doesn't have issues like the sbe did, my experience has led me to believe Browning does it right with shotguns. I would think that the Maxus will fit me well and do better than the SBE. The only two Benellis I actually put money down on today would be the super sport and the M4.