I thought the Instyler I had was the best flat iron I have ever tried, but without a doubt the Instyler IQ is by far the best flat iron I have ever tried. I got silky results that last until I wash my hair again. It has a temperature dial that goes to 430. I only have to set mine at 405 for silky results. It also rotates the barrel in the direction you curl your hair without you setting it. Now I look forward to every time I do my hair.