I used to be one of those who couldn't stand the newer guns due to aesthetics (the lock/frame geometry), MIM parts, and the politics that got us the locks in the first place. When I finally broke over and used the new guns, and I mean put thousands and thousands of rounds of full power magnum ammo (mainly 125 gr 357) through new k, l, and n frames in double action only training, I learned some things. No MIM parts exploded, no internal safeties spontaneously activated, the guns worked, and I didn't worry about the wear and tear like I would with one of my older guns. If something broke, I knew S&W would repair it. I also found that the new guns often have better actions out of the box than my stock old ones. From my limited experience, the new guns have proven themselves. The lock is still ugly though.