Awesome Game, you must play!
I have travelled the net and have played every MMO out there, from Anarchy Online to Everquest II to Guild Wars and not one provided such simple, easy fun as World of Warcraft did. I suggest you ignore the fanboy beration and try it out. Sure it wont be for everybody, but here's an MMO for the masses.
That said, the graphics could be better, but since the size is on such a huge scale, this hardly matters much. Being able to flow seamlessly from oen zone to another with NO LOAD TIME is grand as well. Only 3 times will you ever see a loading screen: 1. When entering an instanced dungeon, 2. When travelling from one continent to the next, and 3. when logging in.
I cant recall many games havign this ability.