it actually works really well (ive only done in arena tournoment and to like lvl 5, but i know you have so much flexablility

the problem with like all class teams is that you have no flexibility, for example all shamans can do damage and heal but they can not tank any instances so they are pvp..
but the druid teams you can have a tank healer and dps to do anything you like, (duelspec reconmended)