I shoot a G22 in IDPA competition and I like it. Never had any of the problems you talk about after hundreds of reloads fired. The only time I ever had a case head separation was with a Browning Hi-Power in 40 S&W so it can happen to guns other than Glocks too. And I would be more than willing to pit the reliability of the Glock against any other out of the box pistol from any maker.