Historically speaking the smaller they make the 9mm, the more unreliable it seems to become. I'll agree that the Kahr steel frames are, about, the best; but I've, also, heard a lot of people complain about Kahr's fit and finish and nobody raves about the factory service.
The worst factory demo I've ever witnessed was put on by a Rohrbaugh factory representative. What a frigg 'in joke! An entire afternoon of one failure-to-feed after another! (Yeah, I know all about, 'changing the springs.')
Nobody got off more than 4 consecutive trouble-free shots before that little pistol jammed! I kept waiting for the factory rep to wrap it up and pull the gun from the crowd; but, he was truly tenacious! That guy just kept hanging in there while offering one excuse after another. When he finally held that little, 'jam-O-matic' out to me, I smiled and flashed my 100% trouble-free Beretta out of my left front pocket.
Why all the concern for a tiny 9mm? If you need to go to a pistol like this, you're going to be in close. Whether it's a 9mm or a 32 acp isn't going to matter. More important will be the ability to fire multiple shots as quickly and accurately as possible.
Besides at typical, 'mouse gun range' a good knife is often a better weapon! You can tie up an opponent's weapon hand and rip his diaphragm wide open in less than a second. A mouse gun might put a man down; but, a properly used 4" blade definitely will.
Anyway, Ruger seems to have a real winner on their hands with the LCP. The price is right; and, the thing works. Personally, I have absolutely no need to upgrade my Beretta, 'Alley Cat'; but, if I were going out, today, to buy another front pocket gun then it would definitely be the new Ruger.
(Comes with - not good, but - great factory service, too!)