The best mass example of astounding reliability I know of are the thousands of Glocks that shoot millions of rounds with no cleaning and no malfunctions. :-)
I can't disagree with that, it's one of the reasons I carry one. Ugly, great guns.
I prefer a 1911 for concealed carry, but in warmer months I often carry a Glock 27 or Kahr K40. The most important choice to make, is be sure it's available at the moment it's needed, not on a shelf or locked in a safe.