I have the third generation PT-145, the one with the little accessory rail in front of the trigger guard.
It is one of the best guns I have ever owned. Mine has gone "bang" every time I have pulled, the now silky smooth trigger, over 2000 times and counting. It is really nice to buy a sub $300.00 gun, that shoots to point of aim, right out of the box, first round. I love the second strike capability, if ever needed. It is super fun to shoot and is my constant companion either as a BUG or a primary office carry. I have sold 5 friends on this little hand cannon by simply giving it to them for a weekend, along with a bunch of targets and 50 rounds of Winchester White Box 230gr. FMJ from Wally World. They all have the stainess slide versions but mine just has the black slide. Double taps are effortless and easy to control. Take down and cleaning is a snap and it has great big white dot sights. When at home mine takes on the role of nightstand gun with a little light on the rail.
I am planning to buy one for each of my two sons when they go for their Texas CHL's as a gift of completion.