Surprisingly addictive.
However, if the game mechanism are prenty simple, and closer to diablo than Everquest 1 Cryptic managed to come up with a pretty solid and fun game.
Indeed, it lacks some depth still with only 5 classes and generic outfits for all of them for instance but nothing that can't be added later by the developers.
Also a very nice point for this game : it is extremly casual gamer friendly.
So if you just have an hour to play the game, it's fine. You can even access some game features from some kind of extranet and check your artisans...
So dont follow official Gamespot review and give the game a try, even if like me you tried dozen heroic fantasy mmo/rpg before this one.