Product review (1 stars): Too much time and effort for little result.
This is like spending 2-3 times of time and effort for a 5% better result: It takes way more time to dry your hair than a regular blow dryer. When you spin it, your hair will be easily stuck (it hurts a lot when it happens, and you lost hair too). After 20-30 mins work, your hair won't look much different than just using a blow dryer and around blush. I am returning it and I don't recommend it.