An MMO masterpeice
Players may decide to do the Horde (Tauren, Orcs, Trolls, Undead) or the Alliance (Humans, Night Elves, Dwarves, Gnomes) and select a good deal of classes (Warrior, Warlock, Mage, Hunter, Priest, Druid, and Rogues) and two faction only classes, Paladin for the Alliance and Shaman for the Horde. The game is fun right off the bat basically as soon as you start your addicted. Like every other MMO you can level by killing mobs or doing quests. The thing about each is that if you grind mobs theres a chance you may get a good item drop from them, as from quests where you can get a good deal of Experiance.
There are also Professions you make take. You can have two professions at one time but you may take all the Secondary Ones (First Aid. Fishing. Cooking) becoming experts at these professions can really rake in good money.
The world is fully explorable, each zone is ranked by the mob levels there. Example, all the starting areas are levels 1-10, meaning in those ranges youll gain good XP from killing mobs in that area. You can still gain Xp from Mobs in that area until you are about level 17 where in which you wont gain any experiance at all.
PvP is a expecially fun bit on gameplay allowing the player to enter a Battleground, though the system is not very relaiable at times. The PvP system works on Honor, the more Honor you have, the higher you rank.
In the end, WoW is a great experiance to all MMO players and those who are willing to give up cash for this game. Will find it worth paying.