My son is a Sig fan and has several including a 238 and a 938. Of course, I have shot his and he has shot all my M&Ps. In the past when we discuss their respective merits he has always said he "just doesn't like" Smith & Wesson pistols. (He likes their revolvers though). Then I bought a Shield and the first time he shot it, after he shot the first full mag he looked at me and said "Sweet. Real sweet". First time he has ever said anything complimentary about an S&W pistol. Now after putting about 200 rounds through my Shield, he is looking for one to buy. As for me personally I find his 938 to have noticeably more recoil and muzzle flip than the Shield. The 938 is slightly smaller than the Shield. To be fair, since I have shot my Shield a lot more than I have shot his 938 it could be just what I am used to. Oh, and he paid nearly 2x for the 938 vs. what my Shield cost. For other opinions take a look around on the Internet and you can find some comparative reviews.