Paul is a phenomenally talented barber - perhaps a victim of his own success at times because he's always so busy. I went in for my first haircut from him a few months ago and was impressed with his speed, how friendly he is, generally how cool the shop is.
Expect a bit of line unless you're lucky, but realize that not only does he do quality work, he does it quickly, almost unbelievably so. And don't be afraid to have one of the other guys working there give you a cut, they're learning from the best and do good work too.
He charges a premium, sure. It's worth it.