Weapons I've owned that had 0 failures:
SIG-SAUER P220A .45 ACP
SIG-SAUER P228 9m/m
Smith % Wesson model 39-2 (several) 9m/m
70 Series Colt Gold Cup .45 ACP
70 Series Colt Government Model .45 ACP
Smith & Wesson model 59
Smith & Wesson model 459
Iver Johnson TP-22 .22 LR
Colt Match Target Woodsman 3rd series
Browning Practical 9m/m
Browning Buckmark Classic Plus
Springfield WW-II G.I. .45 ACP
Smith & Wesson 6906
American (InterArms) Walther PPK .380 ACP
German Walther PPK/S .380 ACP
Bauer .25 ACP
Glocks 17 (9m/m)
Glocks 23 and 27 (.40 S&W)
SIG-SAUER P229 (.40 S&W)
H&K USP-F .45 ACP
Beretta 92 FS Centurion 9m/m
Beretta Minx .22 Short
Bersa Thunder DT .380 ACP
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The only bad experience I've ever had was this:
One that was super accurate, but had to be kept extremely clean
in order to function was a NIB Ruger MK-II KMK-512; or otherwise
it could become a jam-o-matic.
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And two that haven't had a chance to pass MY reliability test are the:
Seecamp LWS-32 .32 ACP
Kimber Raptor II
Simply cuz I haven't had the time to get 'em to the range!