Leiden, hats off to you.
I do not carry one on duty (I'm active duty Navy and carry an M-9 every day) BUT I would not hesitate for a split second if I were able to switch to the 4566 I bought a few years back. The previous owner was Tennessee State Patrol (trade in I bought from Summit) and it is a very smooth and reliable weapon, and although somewhat heavy, it's not nearly unmanageable. I carried a government 1911 for years and never cared about the weight, and this 4566 weighs less.
It's wonderfully accurate, and with a spring change will handle 45 Super loads. It's a fantastic pistol, and I would choose literally nothing else as my duty piece. (and unlike many of my peers, I'm actually a supporter of the M-9 and like it very much)