I have found similar brushes at Sally's for a fraction of the price. When I went to buy more, I was directed to an even better brush. Same idea with the boar's hair and nylon bristles, but the hair bristles are on an angle and hold onto the hair even better. Both brushes are by Ion. The new find is a Pro Shine... I have a medium size brush, but only see the small one on the website.
I can't compare these to Chaz's brushes since I haven't tried his, but I'm happy with my finds!