Works on African American hair
I was dying to try these hair straighteners. They do work on African American hair. (I would say I'm a 4b.) Doesn't ger hair as strait as good as a flat iron, but you can straiten larger sections of hair to finish faster.  Also it's hard to get close to the scalp. You also have to clean every couple of minutes if you have any product in your hair.  Because of the button placement, I had to keep checking to see if I'd changed the settings or turned it off. Overall, it's ok. I'll use when I do not feel like taking the time to use a flat iron.
Rating: 4 stars