Review (4/5): Works very well and the heat elements are well shielded
This heated brush works very well at straightening hair, and I am using it to fight a cowlick in my hair. As a straightener, this is about as good as it can get. The heating element is well protected behind the longer brush heads so it will not burn your face or head. When you hair is damp, you will hear lots of sizzle which is demonstrating it is working, and the localized steam helps the process. Just dont put combing cream or other chemicals on your hair before using it unless you enjoy the smell of vaporized chemicals. And if your hair is too damp, expect excess steam that will potentially burn.
The temperature control is excellent although hard to read without glasses (for me). You can both turn it on and turn it off by pressing the power button for three seconds. My wife was so pleased with this she tried to take it away from me, so that is a real compliment, not to mention a potential cause of conflict.
You will have to use trial and error regarding the temperature setting. And if you have wet hair, it will depend on how wet it is, what temperature to use. The numerous temperature settings are helpful, but it would be nice if there were a digital display of what the temperature actually is.