Oh, almost forgot a couple points of comparison. The Taurus has beautiful rosewood grips that look good and feel even better. They are sharp, comfy, and feel solid and not cheap or cheesy. They seem to be of a better breed than the rest of the pistol. Also, the Taurus has a conventional button magazine release. It does have a magazine disconnector safety which I find really obnoxious, but not for the same reason that everyone else does.
Most people hate the mag disconnector safety because they don't like more things dinking up their handgun and they don't want a useless pistol if they have to do a "tactical reload." I get along well with a mag disconnector safety like on my 3rd Gen S&W pistol, but the Taurus mag disconnecter keeps the slide locked forward when you don't have a mag inserted. You can tip the barrel of course, but you nearly rip the finger prints off your thumb and index finger if you try to retract the slide with no magazine in place, which is inherently "wrong" with a semi-auto pistol. If that weren't enough, the mag disconnector safety drags the magazine so horribly that you have to experience it to believe it.
I know full well that some folks carry a Taurus PT-22 for deep concealment defense. I don't have a problem with that. But I'd buy another Jennings or even a Jimenez before a PT-22 for the purpose of concealed carry or defense, and I'd carry it with an empty chamber. Niether of these is a proper defense pistol, but in the event of an FTF or some sort of jam, the Jennings is light years ahead of the PT-22 in recovery.