Yep, I played the beta. Left major feedback. Played in Live.
I still feel the insane amount of bugs is unacceptable and the playstyle and talent trees are still lacking.
Preservation is the most finished spec. Devastation is just gimmicky, one-build path and flawed.
I made a post on how to fix it. Heres the link check it out! My thoughts on improving Evoker