Be prepared for the gun to NOT go into battery every other magazine or so. This has happened to me with both guns
Picked up one (of the last) pre-Pro Milleniums in .45, looked interesting, felt good in the hand, was very inexpensive.
In the past couple/three years, this pistol has never once malfunctioned. Strange looonnnng sproing-y trigger pull, but dead-on accurate once one masters the trigger. Nice, big dot easily picked-up sights. More'n a few thousand rounds down the pipe of this one, later picked up a PT-145 Mil-Pro which is only slightly different cosmetically (no drastic cut-outs on the slide for the controls), improved trigger pull, no problems with a few hundred rounds through it.
I feel the PT-145s can be exceptional carry pieces and my experience indicates the model can be 100% reliable. Easily concealed, feels good in the hand, good sights, a serious caliber, more than adequate accuracy for its intended purpose ... what's not to like?
I do believe the 745 came out much later than the 145 and was not, in fact, its predecessor.
Should be noted that the firing pin channel needs to be kept clean, the recoil spring/guide rod reassembly requires attention to detail (yes, you can reassemble this pistol incorrectly) and you need to use the correct mags (there are different versions out there). All this can lead to malfunctions.
Standing by for the Taurus bashers to come forth.
Skip Taurus and go with the Sig. You will be much happier
Yep, that's great advice; tell someone to go out and spend 500 more bucks on one pistol and they'll be happier. We all love our SIGs, but come on, now. The SIG P-239 does feel better in the hand to me, is slimmer, has a much, much better trigger, is clearly a much higher quality pistol than the Taurus and is a great pistol in its own right, though comparing it to a PT-145 is comparing apples to oranges -- fewer rounds in a lesser caliber.