That's a really neat looking hat. I particularly like the tiny cables between the big ones. I saw your other post about how to make these. It does seem confusing, but as you say, maybe it makes more sense when you're doing it.
Actually normal cables aren't difficult and changing the size of your cables isn't very complicated. Keeping track of where you are in the pattern might get a little tricky, but if you can knit, you can cable.
Besides, I saw your lovely chickens on the Whatcha' Knittin'? forum, and if you can do that, you can do just about anything with "string" and those two sticks.
I say give it a try!