I use the Valera Pro Style 400 602,01B now every day for a month. The operation was only used to, as the rolling of the brush is to be made by hand by turning a ring and you have to be careful not to burn yourself. The curling iron is in spite of only 400 W but quite hot. Basically, I can recommend the curling iron, but would again favor in the future a curling iron, which has a lever for rolling in and out of the brush, for you do not even need an extra hand.