ACN is a very versatile class early on. It loses much of its versatility later on (especially when you get your job).
CNJ can heal for more than ACN can. In a bad group, this can be the difference between success and a wipe.
Without parroting what's already been said, the CNJ tree also gets access to several useful skills, in particular Stoneskin. Unlike Adloquium, it lasts for 30 minutes, so it's a good buff to throw up before you run off and it can -really- save your casters' lives later on when you're getting hit for all of your HP if you can't dodge. It is a cross-class skill, though, so you can grab it and use it as another class. Mainly, Adloquium is useful while you're getting hit constantly while Stoneskin is useful as a failsafe for the party members who really shouldn't be getting hit constantly.
Now that my WHM has finally reached 50, I can name two other really good aspects of CNJ/WHM: An instant 100% heal - which has a very long cooldown, but can save your tank from death immediately, and holy crackers, Regen (WHM, not CNJ, skill). I don't even bother healing anyone other than the tank unless they're at imminent risk of dying anymore thanks to that. Someone gets hit, toss Regen (which is instant cast and so you can move while doing it) and move on. Regen gives me enough leeway to keep Stoneskin almost constantly up on everyone except the tanks.
But ultimately, having both a WHM and a SCH is where it's at. It becomes much easier to focus on keeping people -and- yourself alive when you can afford to move because you know the fairy will throw a heal. I may be doing it wrong, but I find myself mostly keeping Stoneskin and Regen up while the SCH takes care of most of the emergency heals. And this generally means no deaths, even with lag.
CNJ can heal for more than ACN can. In a bad group, this can be the difference between success and a wipe.
Without parroting what's already been said, the CNJ tree also gets access to several useful skills, in particular Stoneskin. Unlike Adloquium, it lasts for 30 minutes, so it's a good buff to throw up before you run off and it can -really- save your casters' lives later on when you're getting hit for all of your HP if you can't dodge. It is a cross-class skill, though, so you can grab it and use it as another class. Mainly, Adloquium is useful while you're getting hit constantly while Stoneskin is useful as a failsafe for the party members who really shouldn't be getting hit constantly.
Now that my WHM has finally reached 50, I can name two other really good aspects of CNJ/WHM: An instant 100% heal - which has a very long cooldown, but can save your tank from death immediately, and holy crackers, Regen (WHM, not CNJ, skill). I don't even bother healing anyone other than the tank unless they're at imminent risk of dying anymore thanks to that. Someone gets hit, toss Regen (which is instant cast and so you can move while doing it) and move on. Regen gives me enough leeway to keep Stoneskin almost constantly up on everyone except the tanks.
But ultimately, having both a WHM and a SCH is where it's at. It becomes much easier to focus on keeping people -and- yourself alive when you can afford to move because you know the fairy will throw a heal. I may be doing it wrong, but I find myself mostly keeping Stoneskin and Regen up while the SCH takes care of most of the emergency heals. And this generally means no deaths, even with lag.
