I'm trying to ease off a little, in the auto-pistol forum there is a battle we have been fighting for weeks over whether or not you should use a .25 at all for personal defense. I regard it as the absolute worst single caliber choice there is.
If you DO plan on carrying it, and there's no way we're going to talk you out of it, get the best defensive load you can find, and shoot 200 rounds of it through that pistol. If it eats all of them, then it's considered minimally reliable. If it fails to feed, load, extract, or fire even once, start over again at zero. If you just can't make it work, no matter what, put it in the "Fun to shoot" pile and get something else. (It's not worth paying a gunsmith to fix it.) If you shoot that many rounds and STILL like shooting it, I suppose you're ready to go.