It sounds great; exactly how an upgraded intake should sounds. Gives it a little more of a 'muscle car' feel minus the exhaust sounds (which is next up on the upgrade list!
) I can vouch for the 'waking up' for the car, though. It certainly does that.
I was deciding between the ADM, CAI Inc, and the Roto-Fab CAI, and ultimately the Roto-Fab won out, as you can see.