Ihad the privilege of testing one at work. They're hard as **** to find right now. The guy whos i shot is a regular customer @ barneys. It was very accurate, it had a cheap feel to it (especially the mags) but it sure was a tack driver. Nice big muzzle flash too. The guy who let me try it said theyre hard to find right now because the person who has something to do with the production of those barrels passed away. So the production of the pmr and rmr has been slowed down. I dunno how credible that is, but knowing the guy i dont think he'd go out of his way to make it up. If you can find one, it wont be cheap. And if you do you'll probably like it!
Kel-Tec had a few issues with the initial lot of pistols. Namely, there were some structural issues and several of them exploded from pressures that were normal to 22WMR. They also have keyholing issues that KelTec has owned up to.