The penetration is great but the expansion is sub-par. What's the price of the Critical Duty compared to Federal 135-grain Tactical Bonded +P? I bought some and if memory isn't faulty fred confirmed the Federal is a potent self-defense round (and I don't dispute fred's opinion).
I think ATK's ammo tests show the 135-grain Tac Bonded stats as 1066 fps, 12+" penetration and .60" expansion through denim and gel. It's the heaviest round I've shot in my 9mm pistol.