I'd give it 5 stars if it weren't for the effort required to distribute the down inside evenly on cold nights. If you're using it on nights above 25 degrees it's not likely an issue, but all the down in there is loose, so to prevent cold spots you need to backlight it with a bright flashlight and then shake/slap it around & hold it upright to move the insulation around and distribute it evenly. Sounds easier than it is if you're really trying to do a good job of it. Once it's set up right the pad is the shiznit.
This review was written in the old system and had content requirements that are different than reviews written today.