Both the Shield and the G43 are excellent. Let me muddy the water, take a hard look at the Ruger LC9s Pro series. I am an M&P guy, love 'em. Carry one daily. I packed Glock professionally and still own a G20 and G19. Like the Glock plenty. Carried Sig professionally, great handguns. Never cared much for the Ruger centerfire semi auto pistols. I decided recently to purchase a new 9mm handgun in genre you are looking at. I've owned the small Kahr, Sig, S&W, Glock, ect. I recently went to a range where I could rent anything I wanted. You might be surprised at which gun won my shootout contest at the range. I'll say it again, take a hard look at the LC9s Pro...