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game overloads way too many quests on you at once (a case of quantity over quality), no flow of movement between the questing spots (cataclysm does this really well), and plenty of awful quests that send you to previous zones for no reason other than making you waste your time traveling over there
not to mention you outlevel the majority of them way too fast, the exp curve is completely off sync with the questing system right now
oh well, I guess you get what you pay for!