I've not owned mine for long. I've put 50 rounds of Magtech through it. No malfunctions.
My opinions are still reserved on the gun itself though. Not so much on build quality or anything Ruger has done with it, but rather just on the platform in general. The gun is so small it's hard for me to shoot. My shots are all over the paper with this one (I'm not normally some competition level shooter but I can hold my own with my other guns). It also gave me my first slide wound when shooting a gun ever. Guess I was trying too hard to squeeze all my fingers on and held it too high, but on the first shot out of one magazine I gt that tell-tale cut at the base of my thumb from the slide coming back. Wasn't bad (barely broke the skin), but having shot several thousand rounds out of several dozen different handguns, it's the first gun that's ever bitten me