I won one in a contest on UMS. Even though I didn't get to choose the camo pattern I wanted, I am extremely happy to have it. It breathes while padding your head a little for when you get shot. It's very easy to put on, just like a bandana. The thing I like the most is the tails protect your neck from the sun, which is always a problem for me. They're very comfortable and look good at the same time.
Buy one if you want to protect your head from the sun, sweat, and paint. They're well worth it. You can't buy anything better for your head for $10.