I have had a 9mm shield since last October. I have fired over 600 rounds, made up of 5 or 6 ammo brands and have had absolutely no problems or malfunctions. As far as the mag drop problem with the 40's. It is my understanding that the problem only existed in early production guns and has since been resolved. The Shield is a great pistol and I have no problem highly recommending it. I am carrying mine right now and trust it with my life.