Not a bad game, a lot of replay ability. The story is poor and you'll see all of the quests the game has to offer fairly soon- things like rescuing townsfolk, killing a certain amount of monsters, beating a boss-level monster or collecting herbs.
That said, you can keep leveling up your character and the game stays competitive and fun for a long time. The competing guilds aspect of the game is unique, although it can get easy to manipulate.

It seems very similar to Soldak's other game, Kivi's Underworld. I would buy either one or the other, but not both.