Rabanastre on WHM is tons of fun, though at this point if I can offer a bit of advice; be extra cautious about tunnel visioning on the boss some of the mechanics can sneak up on you and give you some trouble. Bosses there don't have hard enrages so if your personal DPS isn't sky high and you focus on keeping everyone up it's not the end of the world.
Plus if your cohealers are anything like most of mine you'll find yourself on rez duty anyways - best way to avoid that is refusing to let them all die in the first place.