I love my CHI 2" Ceramic Flat Iron. When my last flat-iron kicked the bucket, I made sure I did research on warranties before shelling out cash for a new flat iron. I had heard nothing but good things about the CHI line, and decided to purchase the 2" model. I couldn't be happier. The CHI 2" Ceramic Flat Iron, straights my hot mess of frizzes and waves out in no time, and the straightening effect lasts all day throughout humidity or rain or even hail! It never burns my hair, and it doesn't even dryout my hair overmuch like some non-ceramic models can do. I haven't had to use the warranty on this product, because it has been working faithfully for more than a year now, but the product does come with a one year warranty. And since I've had the CHI 2" Ceramic Flat Iron for more than a year, I can also confirm that it works well in all seasons and with all lengths of hair - I bought the flat iron when I had shorter hair, which has since grown out, and the iron works equally as well now that my hair is much longer. I would recommend the CHI 2" Ceramic Flat Iron as the best flat iron I have ever owned!