That I personally owned:
The most expensive gun I ever bought, until very recently, the Colt Combat Commander I bought in 1980 or 81. Horrible. Not one straight part in it. Jammed on the first shot most of the time. No, mags weren't the problem, it was the gun. Sent it back to Colt, who just scratched it up. Sold it to a local Colt fanboi for only a slight loss. If Colt "service" hadn't messed it up, I could have broken even.
That a friend owned:
Wilson Custom 1911, don't know, or care, what model it was, except it was full sized. Slightly better than my old Colt above, but rarely would it make it through an entire mag without a problem. It was well over $2000, and was very pretty. My friend was told it just needed to be "broken in", but 1000 rounds through it changed nothing. My $350 EAA Witness .45, and another friend's $550 CZ97B made it look very bad, sawing through mag after mag of the same ammo, without a single hitch. It got to the point I was purposely trying to "limp wrist" my Witness, and failed, it doesn't care how it's held. It impressed my friend greatly, who had a lot of custom/semi custom 1911's to come back down to earth and get some "cheap guns" that actually SHOOT. The Wilson went back, and came back and was a little better, but still hung up about once every other mag. Ridiculous.