The 3AT is a fine little pistol in its own right. It will disappear in your front pocket.
The P-32 is even better. It is not disagreeable to shoot. It disappears and I forget I have it with me. I like them so much I have two of them. A 1st generation and a 2nd generation. The 2nd generation is always with me. Always. The 1st generation has a light blue grip and is a prize possession.
The 3AT and the P-32 will generally not cause instant death to an assailant. But, .45s have also been known NOT to cause instant death. Either one may save your life though.
The P-32 that I carry, is vastly superior to the .45, that is in my gun safe. Pocket pistols cannot replace full size pistols, shotguns or rifles. I generally shoot 9mm, .40 and .45s at the range. When outside, bush hogging and such, I wear a .38 Special, with the first two chambers loaded with snake shot. But, the P-32 is always in my front pocket. So, I choose the P-32 over the 3AT.