I had a Shield 1.0, which I gave to my son-in-law. I now have a Shield 2.0, and a Ruger EC9s. Nothing wrong with the Ruger, but I much prefer the Shield. (Prefer the Shield over the Glock 43, as well.) The S&W and Ruger have both been 100 percent reliable, but the Shield has a much higher quality feel to it. There is also much more aftermarket support for the Shield. I read somewhere that S&W has sold over a million Shields. The only reason IMO to buy the Ruger over the Shield is if price is a big factor. And, even then, sometimes you can find Shield 1.0s for a heck of a price.