I don't shoot, carry and work with my Glock enough to know if it's reliable. Also, Glocks are still kinda a new gun in town.
However, I am impressed with the service history of the 1911.
I have fired hundreds (if not in the thousands) of reloads in the Glock, no problem, I've burned boxes on factory, ditto.. I still don't like it's grip or trigger.
It gets an occasional trip to the range as a 'guest' gun. Some new shooters like the 9mm over my 1911 .45 acp.
I think there are many 'reliable' guns that have better grip fit and trigger function.
I wouldn't hesitate using it if need be, but I don't enjoy it.
Is it a good gun. Sure. Is it perfection? Far from it.