I just recently completed an LEO firearms instructor class in which three popular firearm brands were represented. About 60% of the class shot Glocks (.40 & .45), 30% Sigs (.357 Sig, 9mm, .45), and 10% H&K (.40). Every brand had some sort of problem, except the Glocks. The main take-down pin in the H&K fell out while the guy was shooting it. He thought it was the slide failing to go fully forward and slapped the slide forward, causing it to fall off the gun. He said this is a common problem at his agency. One relatively new Sig jammed frequently. The Glocks suffered no malfunctions throughout the entire class. They are also much cheaper to buy than the other brands. I think I'll stick with my Glocks.