I find the chanter to be awesome for grinding. My DPS is not spectacular, but I can easily kill mobs 2-3 levels higher than me, and I do not take very much damage. I can also pop hots on myself as I kill things, and I rarely run out of mana, so there is very little down time. I'm not sure how PVP will be, as we don't have the CC or big heals that clerics have. At higher levels, you can stigma more towards a support roll and get better buffs and HoTs, or you can go the DPS route for more offensive spells.

The only other classes I have played past 10 are a sorcerer and a ranger. The sorcerer is easy-nuke mode, but yeah, runs out of mana constantly. The ranger doesn't have mana problems, but I found it pretty tricky to play...kiting is hard!

I think my next alt is going to be a spiritmaster.