Big Agnes, where have you been my whole life?
This one is simple, ladies and gentlemen. This is the sleeping pad to own.
It's only been out a few times, but each time I marvel at why I put up with those self-inflating wafers for so long. Sure, you've got to spend a couple of minutes blowing it up, but the reward is well worth it. (Word of advice: don't try to blow it up right after hiking into a camp at a high altitude.)
Oh, and it really does pack down small. I can fit it, my Marmot down bag and a bunch of clothes in the sleeping bag compartment of my Deuter pack.