I like the G19 pretty well.
In the beginning, I got one just to have around for instruction - - I teach Concealed Handgun License classes, as well as basic personal defense, mostly for women and beginning guys. Used to be, someone ALWAYS asked about the [in]famous Glock pistols, and some seemed disappointed if they didn't have a chance to shoot one.
After I shot it quite a bit, I found it was a simple, serviceable handgun, useable within the restrictions of the caliber. If I carry a 9mm, it is usually a Browning HP, but the G19 would do in a pinch. It is pretty compact for its magazine capacity, reasonably accurate, and is both large enough to look like a "real gun" and light enough to carry concealed for extended periods.
After a time, I began carrying a "spare kit" -- G19 with a magazine of Speer 124 Gold Dot in place, another mag of FMJ, and an empty mag, with a Fobus paddle holster and a full box of ammo. All this was towel-wrapped in a .30 cal ammo box, in the trunk of my agency take-home car. It was available for loan to deserving individuals, or in case I ever had to leave my sidearm at the lab . . . .
Since my retirement, the same kit resides in the tool box on my truck. I've taken to leaving my .45 Commander home and usually pocket carry an alloy frame .38 snubby. I haven't felt it necessary to dig out the Glock, but there's comfort in knowing it's there. And, if the truck was burned or burgled, it's not as if I lost a Colt or a Smith- - -
Best,
Johnny