Update: my Cham still loves this dripper. As soon as SHE sees the water she goes right for it. So far it's been the best (and cheapest) investment. She drinks from it everyday. I highly recommend this to everyone! Note: a fogger is on the way to aid in humidity.
My chameleon completely ignored his dripper, I left it on forever just in case he warmed up to it, never seen him or bother with it, my Cham only seems to drink whatever water builds up on his crest and rolls down his face