Personal preference. It feels good in my hand, I can shoot it well, it will eat any and all practice ammo I put through it, and the lack of a manual safety (but their ultra reliable trigger/firing pin safeties) added up to me choosing it over other options. Your CCW is a very personal decision. Some people carry .22s, some carry 44 magnums. All of them -- hopefully -- will go bang if they're ever needed. It's all about how comfortable the person feels with a particular weapons platform.