Not calling it a torture test, but have over 35,000 rounds through a G35. Other than replacing wear parts (recoil spring, disconnector and slide stop) this thing I swear gets better all the time. It has a Bar Sto barrel so that I feel comfortable with the handloads I put through it.
A G34 that I've owned for a couple of years has seen only about 1000 rounds and it is just getting seated in.
I also have a G23 that has thousands of rounds through without a hitch. I think the recoil spring is due, but everything else on it is GTG.
The only trouble so far was with a G27 that at first had FTE issues. It was new and Glock put a new extractor in it and it's reliable as a maytag washing machine now.
I could go on, but I've either been lucky, all of the Glocks have been reliable, or this is the normal trend. I've got seven of them and each one I'd rely on if the situation ever was needed.