After getting my nipples done, my eyebrow was a piece of cake. No pain, not even much in the way of discomfort... Guess I was just high on endorphines or something :)
One interesting thing about this pierce (an eyebrow pierce) is the proximity of the needle to your eye. It's reflex to close your eye (and some piercers might even tell you to), but if you keep it open you are affored quite an interesting view. Also, once the needle has gone through, having your eye open is interesting, since you see this huge thing, just out of focus off to the side :)