I made a video of me dueling some players on Brill EU PTR server.
Players are not the best, including me ;D. Video is made to show Ret dmg on PTR and new Exorcism/SoCommand.
I don't feel weak, I can still beat every class fairly easy. I'll try to capture some arena matches if I find Disc Priest to play with. I can't tell how is Ret in arena yet (2v2 I mean) but it's still good for pwning noobs in BGs.
http://www.youtube.com/watch?v=xiINrzgL8k0