Remove potion use and some trash skipping class mechanics and than I'd say it is succesfull. Atm some groups have such a major advantage by just bringing 1 class.
I'm not that interested in it as there is no reward in it for me next to a crap looking transmoq (shaman). Add a 5-10% chance to get a epic weapon (the ones from heroic dungeons) and it would pull me in instantly.