I have the original chi streightening iron.  It leaves my hair perfectly streight and soft, always very excelent function and the right temperature. My hair is in mint condition and no split ends are the result of the chi streightening iron. I knew it was good but using it has been the best thing that could happend to my hair. Is easy to use, I get quick results and practice has make me better and quicker. Its so easy to use it and the results are like a salon result. Excelent for all kind of hairs and with any kind of treatment. Thanks to chi for this marvelous item.