I don't know about the CHI... but the fancy mall has this one that is AWESOME. You last all day and can even go out in the rain ... and your hair will STILL will be silky flat. They do demonstrations on anybody who wants to try and everybody loves them.
I'm gonna get one t christmas for my daughter.. they are SUPER expensive but HONESTLY.... anything that tames frizz and makes silk hair is worth EVERY PENNY TO ME!!!!! OMG and to be able to be in a rainy misty day all dauy and its still silky straight OMG