I've got a PT-140 which I almost always use as my carry piece, due to it's concealability.
Pros:
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1) Easily concealable.
2) Reliable.
3) Affordable.
Cons:
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1) Difficult to shoot accurately.
2) Stiff trigger pull.
3) Difficult to control, unless using Federal 135 Premium Personal Defense loads.
I consider it a good weapon for close range defense, ie. under 10 yards.