Its a Korean PvP centric game split into 3 factions, the combat is fast paced, the gfx are very good, the landscape is a little boring (at least at low lvls), from what I have heard the content is aimed at the higher lvl crowd. There are no healers as such, but every player can carry stacks of healing and mana potions so its solo friendly, but at higher lvls from what I have heard you still need to grp.
You get xp and lvls as the norm but skills progress as you use them, which means if you left a skill out when you were lvl'n you have to go back to the easy mobs and use it to skill it up as it wont work on mobs your own lvl, so you need to make sure your using the right skill set as you lvl.
The PvP in this game revolves around the Crag Mine which is important as this is where you get the materials for high lvl crafting, although any player can mine at the mine ... only specialist can craft items. The faction which controls the mine gets to mine the ore.
Thats a brief run down, use google to find the actual site if you wanna find out more.
Sax.