The day I recieved this my old hair dryer had blown up on me. After using this a few times oh my goodness! I absolutely love it! The temperature settings are amazing. When you press cool it automatically switches over. When you release cool to go back to hot or warm setting it's an automatic switch. My hair is so shiny! My hair is on the thicker side so it usually takes a while to fry, well this dries my hair so much quicker! The attachments help so much! Need extra volume there's an attachment, want to straighten your hair without a lot of heat there's an attachment, have natural curly hair and want to use the diffuser for added volume and frizz free curls there's an attachment! I could go on and on about how much I love this hair dryer! It's my favorite now!