Two Kel-Teks bought, two Kel-Teks sold. A P3AT that failed every chance it could, and a P11 whose rear sight fell out and both were about as smooth as 40 grit sandpaper.
I can recall hearing "fluff and buff" for the very first time after buying the P3AT, and how all of them needed it after purchase to make them work. I can recall the majority of members over at the Kel-Tek forum reporting problems, and excellent customer service.
No Bill, as orion said, and IME, the majority has had issues with their Kel-Teks, especially the P3AT. Excellent idea, so-so execution. Ruger definitely refined it.
I've currently got a TCP, which I haven't shot yet, but is more then a step above the P3AT in fit and finish, and light years ahead in trigger pull. Don't know about reliability yet, but it cycles reliably, even with steel cased, something the P3AT never did.
Oh, and the TCP has a manual slide lock with last shot hold open, things the P3AT lacks.
Ok, off my soapbox now.