I picked up a Smith & Wesson M&P 45 at the Fort Worth Gun Show yesterday. It's the full size model in Dark Earth color with a black slide. Here's what sold me:
- Fully ambidextrous controls, including the slide release and magazine release. The mag release is reversible, and taking it out and turning around took all of about 2 minutes.
- Ambidextrous thumb safety. I know, I know... It has a trigger safety, yada, yada, yada. I still like me a thumb safety.
- Lower bore axis in relation to the frame than the XD, but it still has a pronounced "beaver tail" so the slide won't bite you. Lower height = less muzzle flip.
- Relatively light weight - almost an ounce lighter than the Glock 21, one of its competitors.
- Changeable back straps. It came with the medium one installed, and it fit my hand even better than the XD. I tried installing the smaller back strap, and it is now perfect.
- It feels very much like a 1911. In fact, the ergonomics are very much like a 1911 and it points very naturally.
- Trigger pull is about a pound heavier than a Glock 21, but it has a shorter pull, and it breaks crisply, unlike the Glock.
- The above comes at the sacrifice of 3 rounds of capacity compared to the Glock 21. The M&P is a 10+1 magazine. On the other hand, if 22 rounds of .45 ACP isn't enough, I have pressing business elsewhere.
- Legal in California when I have to go out there later this year for family reasons.
- Gun show price was $599.00, which is pretty affordable for a premium brand fighting gun. (The H&K USP Compact .40 it is replacing was purchased for $740.00 in 2007)
- Built in America, by Americans, working for an American company.

Here is a review from GunBlast.com