For what its worth, I love mine. The only thing that I would change is the muzzle brake. Its kind of ugly, and my pals at the range are not real happy about me firing it next to them. I am considering talking to Kurt about a different brake, but do not want to do anything permanent to the rifle. This is my second Colt, and I have only good things to say about both of them. I just purcahsed a RRA, and am going to the range with it Friday. I'm very interested to have something to compare.
IMO, its worth a few extra bucks to have the pony on the side. I looked at the Bushy M4, and almost got it, but the price difference between the 2 wasn't so much that I could not go with the Colt. I do like the brake better on the Bushmaster though.