The game is a gem and should be played by any gamer. It does not matter what sort of gamer you are. It's a great game. Basically you have to save humankind from some monsters that want to come from the other side. It has some sort of corny plot, but it does not matter that. You have to opportunity to kill them using all sorts of weapons and gear. You have ethereal powers that can be upgraded too.
You have lots of quests along the way and some are really interesting and after all, that's the point of this sort of game. In my opinion, it's one of the best ARPG that I ever played. Buy it, even on sale.