Absolutely love this product. I find it difficult to coordinate a brush and dryer together and this eliminates that need. I was initially skeptical as my hair is long, thick, curly, coarse... everything that makes hair difficult to manage and means these products typically don't work. This left my hair shiny and smooth with a gorgeous bevel at the ends which turns to a loose curl after a day or so. A must have product for medium to long length hair. Took about 25 minutes to do my whole head carefully, you could do it quicker if you're not trying to get it really straight. Smaller sections are better if you want it straight and smooth. Buy now!!