Here's a nice video that shows the size and configurations that can be formed with this looooooooong sit pad/pillow.
The Klymit Cush has a really nifty circular depression that your ear fits in nicely if you're sleeping on your side. If I ONLY slept on my side, I think this pillow would be pretty nice, because with a longish rubber band circled once around it, I can keep it in the 3-fold configuration that seems about the right height for me when I'm on my side. BUT......I tend to toss and turn all night long, from side to back to other side, etc. And the problem is that when I have the pillow folded three times to support my head nicely in the side-sleeping configuration, it doesn't work well at all when I switch to my back. When I turned to my back I realized that in the 3-fold configuration that's best for side sleeping, the circular depression for your ear is off center. So it does NOT cradle the back of your head at all and just feels very mis-shaped to me. The result is that your head has more of a tendency to want to roll off of it. And flipping it over to put the ear depression on the bottom doesn't really help. My head just rolls around too much and wants to fall off. The only solution seems to be to take the rubber band off and transition it to a 2-fold configuration. But as much as I toss and turn, do I really want to have to screw around with a rubber band and modifying the number of folds in the pillow every time I go from side to back and vice versa? No way!!
I've concluded that my Exped Air Pillow clobbers the Klymit Cush for pillow use. Granted, the Exped is JUST a pillow, whereas the Klymit Cush is also advertised as a sit pad, but I personally don't care about that function at all. I just bought it to see if it would make for any better of a pillow than what I already had. So maybe it depends what you want to use it for. As always though, your mileage may vary.