I've sent a couple thousand rounds downrange since I got it ... No problems ... no misfires ... no jams ... I've since added a tactical light ... the weapon eats anything I feed it ... Even Wolf 9mm ... and my Hi-Power won't cycle Wolf ammo ... the image below was shot at 50 yards with the Kel-Tec, my Hi-Power, a .357, a S&W 9MM, and a Thompson SMG:
Other good things about it ... it folds up into a nice small package that can be easily slipped into a backpack or under a car seat. And the price is reasonable, a little over $300 new in a gun store.
Bad things: it is NOT LEGAL in several states, including CA and IL. Check your local laws.