It's definitely easier than using a hair straightener. It was easy enough to just brush my hair to straighten it. Trying to get the hair to stay on the brush was a lottle tougher. I had to hold the hair in one side to ensure it was being pressed. The brush itself gets pretty hot, so I used a oven hot pad because in have sensitive hands.
I did straighten my hair. I think it just takes practice and I'll get it down as easy as it looked in the video.
Definitely recommend if you want to straighten your hair in half the time it takes for the flat iron.