hi reneeintx,
Well i own the Superstar and i live in miami, so the humidity here is horrbile. i have curly think hair, and the superstar has done wonders to my hair. my mom has thin hair which humidity totally kills it, and i ironed her hair and the humidity di nothing to it. The SuperStar is basically the Chi, but improved, the chi has no temp. setting, its made by the same guy. When I called to make my order they told me the chi will soon be discontinied, i don't know if its true though.
In my opinion though , u should definatly go for the SuperStar. Its the BEST, honestly speaking

on **** they are a little cheaper