I'm not "done" with them, as I occasionally shoot and carry them, but...
For a good number of years I was practically obsessed with S&W revolvers, and then with 1911s, and spent waay tooo much money on that obsession (having custom work done by the top guys in the business).
Ultimately, I finally gave in to the polymer era and entered the world of Glocks. My Glock immersion continued side-by-side with my use of 1911s for a good number of years.
These days, my revolvers, 1911s, and Glocks are all mostly safe queens and it's my M&Ps and Sig P320s which are seeing most of my carry use and range time.
Why? The M&Ps and P320s offer high capacity (which I consider to be a very important defense gun attribute these days), exceptional reliability right out-of-the-box, very good triggers (even if not quite so nice as a good 1911 trigger), great durability, accuracy, low cost, and they carry very nicely. They're not finnicky, have great fit-flexibility, feel great in the hand, and they are stone reliable & fully featured right out of the box.
If I need to grab a hand gun for defensive purposes these days, my first choice is an M&P40 or a Sig P320 40, both full size. These guns shoot magnificently. And the choice of .40S&W caliber gives a great combination of high capacity (16 rounds and 15 rounds, respectively), excellent terminal ballistics (180 gr HST), easy controllability for accurate rapid fire, and are very pleasurable to shoot for recreation as well.