I have no problems healing, i'm only a lvl 23 fury right now so that might play in to it i have no clue, i will find out later but right now if i'm a main healer in the group i'm the last to go oop. I dunno if that is just the way i play or good equipment decisions i don't know, being main healer in group i do just fine on power, got a 24 fury friend who goes oop a lot faster than me, i don't know if its because he doesn't keep up with the tank as much or what. I am sure it might be different at 30+ but so far i am doing fine. I love playing a fury i prefer it over a warden but that is just my opinion. We are mainly meant for support healing and everything but if you know your class and you have a tank that has a brain then you should not have any problems and yes fury's can main heal on higher mobs, if you are talking about a raid that would make no sense because you would always want a cleric with you for that but if attacking something reasonable to your group then you should be fine.