i own a MM...the only crappy part is the J-lock in the safety...
i believe older models and the newest production models don't come with them...i just had the misfortune of buying my MM when they came with them...
not one single problem to date...very durable finish...the bolt is a very wear-prone part in any gun...the bolt in the MM is also nickel plated...the nickel plating is only showing minimal signs of wear in my MM...
i added a vang comp stainless follower and added a slip on recoil pad...no sling, no light, no side saddles....i like my shotty bone stock...6+1 capacity should take care of business in a HD situation...
however, for my HD shotty, i have switched over to a hammer double made by TTN...i just don't trust a shotgun with staked in shell latches...