I ma using it for Normal BG as resto druid. Its AWESOME but since its purely designed for PVE rotation and PVP mostly has no rotation more situational you need to control Movement ofc, some survivability tricks ( Shadow-meld as NE ,cyclones,roots etc ). The most annoying part is
1-once a player goes low health and it heal him to some 75% or 80% i will stop healing for a while so be aware of that and lets say some one is at 40% and you need fast strong heal e.g Nature swiftness + Healing touch followed by regrowth or what ever. WONT happen you have to do that it might use NS + Regrowth at least for me maybe wrong settings i don't know.
2-some time for odd reason it uses cd on me and ignore low player health (swift mend) and i think it consider it as an aoe heal so in PVE ,again and specially LFR , most players stand near the healers so it make sense a bit for me.
3-Poiton/Health stones. you need to use them your self
4-some spells never been used ( Nourish,Willdgroth)
5-and of curse Fake cast XD just do it your self and DON'T depend on it you fake it will re cast the last spell. cast it yourself.
other that its really great and fast CC and i understand its NOT DESIGNED for pvp and i am not complaining..i have a post just a page behind for my setting i would love if some one with good experience look at it and tell me if i can do them better.
hope that help