I really liked it. The foil gives it a better heat rating than just air. Cons is that it's loud. Like wake up your wife and dogs loud. Also, while camping in prudoe bay, in a fucking ice storm it blew a baffle. If you weren't pressing on the blown baffle area directly it would boil up there and push you off the side of the pad. Inconvenient. Too bad though because otherwise it was nice. The big Agnes pads consistently develop leaks around the valves. You'd think for a few hundred bucks they would be able to stand up for a bit. I had the Rei manager give me crap for returning 8 pads over a 3 year period. I told him to stop selling shit pads. Bought an old fashioned closed foam rollup for car camping (at least you're not on the ground at 3am) and then a basic thermolite.