i´ve done a chameleon build and no matter what everything else is better
this is what i feel and i did try to like it , it doesnt do better than any Hf build i can make for close quarters and its also worst than any long /medium range dps build , the talents on it take too long to proc and when they do the fight is over , but even when its useful its a pain to keep track and maintain 3 timed buffs at the same time that do the same as any of the builds i mentioned above , not even with GB i found it fun.
TLDR , chameleon sucks.