I have a Pulse and love it. I'm on the fence, but am strongly considering either a Centroid or Shift. I will say that I prefer the draw cycle of my Pulse, as well as the speed and even the grip... BUT, I really believe the parallel cam system to have serious merit and may ultimately end up sacrificing a little comfort to cash in on what these Primes have to offer.
I haven't shot a Prime at any kind of distance, but so far all of the claims appear to be true. Centershot sets up straight down the riser and the sight pins line up perfectly down the center. Zero cam lean. All good stuff. I can only imagine that these bows shoot very, very well at longer distances, based upon these factors and what I've seen on the indoor range.
I haven't convinced myself to take the leap just yet, but I'm awfully close.