Saying...
...it's a problem with the "PT" series is a little inaccurate. All Taurus autos use the "PT" designation. The PT-92/99/100/101 are good quality Beretta clones. The PT-910/940/945/957 use similar frames but with an enclosed slide and a Browning/SIG-style tilting barrel that locks the barrel hood into an enlarged ejection port; these are also fine guns.
The problem is with the "Millenium"-series polymer-frame Taurus pistols: the PT-111/138/140/145. QC issues, frequent parts/frame breakage, The Worst Trigger Pull On The Planet, nervous breakdown-inducing field-stripping/reassembly. I'm not real fond of 'em, does it show?