Okay so I was skeptical. I have thin long hair (halfway down my back) and this amazing product dried it all in less than five minutes! I love the different speed and temperature settings, very customizable to the job and look you desire. Not only was this machine efficient it made my hair look even healthier than before, it was so soft and shiny after and I also felt that my knots didn't start as quickly as normal throughout the day! My old hair drier will be going in the trash for sure!