It's really difficult to review this game. WoW has changed so much since its launch, that it's almost not the same game anymore. Sure, the basics of the game are, more or less, intact. Sure,the game looks and sounds almost exactly the same. But at the same time the game is a far cry from what it used to be. It used to be a hardcore MMO in which you had to work (hard) if you wanted to achieve anything. But with that came a sense of enormous satisfaction. It got progressively more casual (read: worse) with each expansion. Deduct 0.5 rating from my score for each expansion.
Pros: Fantastic art design and musical score, sense of satisfaction and awe, social aspect, really polished
Cons: A lot of grinding needed, tedious when rerolling a class