Back in the glory days of restoration shaman, say around The Burning Crusade, Chain Heal was the best things since Roasted Kodo Meat. It was the premier group heal, it was incredibly efficient in terms of mana cost, and you could heal for the same value as two healers. It was truly the greatest of times for those healing minded of us.
Anyone who has been following me on Twitter has probably noted that over the last few weeks I've had a pretty love hate relationship with CH on various fights in Siege of Orgrimmar. It is a complicated matter, at least through my eyes, for a few reasons.