Review (1/5): Don't waste your money.
A few problems:
The bristles are too flexible. They give with the slightest resistance. My hair is fairly thick & wavy and I found that the bristles would barely make it through my hair and would just bend under the slightest brushstroke. Sure, it makes for a pain-free detangling experience, but that's because the bristles bend out of the way for tangles, rather than working through them to actually detangle.
I thought the vented design was a nice feature until I quickly realized how weak it rendered the brush. It's made out of cheap plastic and my brush ended up snapping less than a month after arrival from normal use.