FWIW: I am not a fan of Glock. They are ugly, they are bulky, they are subject to getting the grips pitted, prone to limp wristing jambs and many other things. However they work well, shoot pretty much accurately out of the box and dang near indestructable. Put them in the bottom of a lake for a month, take it out, clean it then fire it just like it never left your hands. I work with several departments that use Glock and total over 3,000 officers. Each of us own and shoot Glocks. Not once has one blown up. We began with the 9mm back in 1982 and went to the .40 in 1999. Not in that time has there been a single blow up. Since each shoots factory ammo, I am unaware of any probelms in that area. My Glock Model 22 has had well over 10,000 round through it and it is still tight. I did have a magazine to fail but I carry two spares so that was not a problem and did not cause any injury.
Yes, I would rather carry S&W and do so when not working. But Glock makes a solid sidearm.