So you aren't into HC's yet?
Things will change a bit then. Some HC's you can easily breeze through, though others require some more work.
Before they nerfed first boss in SFK, he was freakingly annoying at times. I have had so many wipes there, if the tank or dps didn't know how to stop Mend Rotting Flesh, because you end up running out of mana insanely fast.
But good that you enjoy the shaman healing at least. I love it myself, though I tend to get tired of running the HC's now after I got my dragon. But not all places will be easy, and it sometimes requires that DPS and tanks know what to do. Else it can be hell, as you don't have that many "oh shit" abilities to work with.