It's always seemed a bit odd to me over the years as I read dozens of books, magazines, owner's manuals and so forth concerning the care and feeding of semiautos, that the authors seemed to devote an unusual amount of ink up front discussing how reliable the autoloaders is. It's almost as if they feel they have to convince us. Having done this, the remaining chapters are filled with instructions on how to clear stovepipe jams and other feed failures, advice on polishing the feed ramp and selecting magazines, what type of cleaning solutions and lubricants are best, the possiblity that you might have to swap the recoil spring and tinker with the extractor or ejector, or enlarge the ejection port before the gun will work properly. Later chapters cover the evils of a limp wrist, and the absolute necessity for test firing your carry ammo to make certain that it will function in your particular gun. At the same time, the ammo makers spend inordinate amounts of effort trying to engineer an effective bullet that will feed in at least most of the popular self-defense pistols, while at the same time have enough "oomph" to cycle the slide.
As I look around TFL, I also note the number of threads concerning feeding and functioning of autoloaders, what ammo works best in which brand pistol, how to decide whether the fault in question lies with the magazine, the ammunition, the pistol itself, or the shooter. I own autos, including Glocks, and love shooting them. But when that occasional feed failure occurs, or the slide doesn't lock back after the last round, or I pull the trigger and it just goes "click," I may be surprised, but it happens to my 100% reliable pistols just often enough to stick in the back of my mind.