I have one for my new juvi jacksons chameleon, they look cool and proved lots of leaf cover. They don't really have much in the way of limbs but I have a umbrella tree and lots of vines for perches, seems to work well so far tho I'm not sure how well it would work with a larger cham.
I defiantly wouldn't have it as my only tree due to the lack if horizontal limbs, but for a 2nd I think it should do fine.