Product review (4 stars): great at getting tangles out
This product is very gentle on my hair, great at getting tangles out, and is helping me grow out my hair! *

The one downside I found is that it is a little delicate. I put this brush in a suitcase while I was traveling, and about 1/6th of the bristles were pushed in dramatically. I cannot pull them out, make them straight, or restore my brush to it's former glory.
It still is a great product, just a little less effective than it used to be.

*full disclosure: I have course, thick, straight/wavy hair.