I've had the PT145 PRO for about 3 months. The first 50 I put through it I had multiple failures, it would lock with the slide back with some still left in the mag., a couple of times had a failure to feed with the cartridge stuck at a 90 deg. angle with the lead sticking out of the top, the mag release sticks out too much for my fat fingers; accidentally released the mag a few times while firing.
Turns out one of the mags was defective - factory sent me a new one at no charge with a 10 day turnaround. Good customer service. The about solved the FTF with only one with the second 50, the same 90 degree angle. I was probably doing the same thing 74novaman was doing and unknowingly putting pressure on the slide lock (release) with my fingers; didn't have the problem with the second 50 but I still have the problem with my thumb releasing the mag when I don't want it to.
All in all it's a good economical compact .45 until I can save up for a compact 1911; then it's up for sale.
If plan on getting one Academy probably has the best price on a new one. I got mine there for $329.99.
It's something how just a nice set of grips will dress up a gun. I took the cheap looking black plastic grips off my new Para GI Expert and replaced them with a set of cococola rosewood grips (half smooth/half checkered) and what a difference!