I am planning on adding one to my collection in a month or two (I have a thing for the "out of the ordinary" guns). I don't have their SU16, but do have 2 of the sub 2000s. I love them both - the 9mm and 40. I was going to get their SU, but found a deal on an AR 180 that I couldn't pass up.
You don't see much on the gun, because most guys around here are purists I guess. If you get one before I do, would you either post a review, or email me? I'm not big on accuracy with a gun like the PLR, but reliability is a whole other story.