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+1 on post # 4, covers it for the most part, except:
Beretta is about to release a new "medium" Px4 in 9 or 40cal and it is about the same size, maybe a tad thinner, as a Sig P229/40
3 models:
Px4 40 - full size
Px4 40 - mid size (coming soon, if not out)
Px4 SC - small, 9mm only
Could be the right DA/SA gun in 40, with the rotating barrel which does dampen the 40's recoil with no tilt-up action.. very forgiving gun
I have a full size Px4 40, some 10k rounds over 3yrs, not one jam, pure dependability and reliability our of the box. Very soft shooting 40cal, right up there with Sigs P229/40.. both very forgiving DA/SA hammered guns.
I own both and both are 100% good to go out of the box and both are "accurate" shooters..
SA EMP 1911 SAO 40cal - as good as it gets, as well. I have the 9mm EMP and it has some 4500 flawless rounds, as well. Accurate shooter
Luck,
Ls