The healing skill in the Aion

In my short MMO experiences with playing Dps classes which is fun in PVP but boring in PVE.
Whenever I have an idea to quit WoW( even I am not interested in the direction that the game is going, I would like to try some healing that was born in PVP and PVE.
The way to describe the Dps in WOW in my way is: spam x rotation /yawn. Healing is more reacting to the situation and is with great responsibilities over a group after the moment you have to keep them alive. I have no idea on what to expect from Aion healing. That is mainly for the reason that I never did any so far.