Mine has worked pretty good. I broke an extractor once but Kel-tec sent a new one in the mail quickly. I agree with Lane, it's no fun to shoot but I'm sure thats because its so light and skinney. It's well worth the money when you compare it to similar sized guns. I dislike the franken bolt extractor and the fact that they put a stupid tac rail on it. But I say it's a solid buy.
If money was no object this is what I would get for pocket carry.
http://www.rohrbaughfirearms.com/