This game is too good to describe in words
There are many races and classes to choose from and they start offf in different areas. You try to level up and "complete" regions to move on to another one. The graphics, storyline, options and the thought of rewards make sure that this is NOT boring. The most stand-out feature to me is the graphics and the lovely surroundings. Without having to need anywhere a medium level graphics card to run.
The PvE is phenomonal especially the end game content. Unlike most other MMOs which don't include much end game content, WoW has intense fast-paced instances, dungeons and raids. These are exciting and are a major key in WoW.
The PvP is just as good with PvP world and places to PvP including battlegrounds. Then there is of course PvP realms. It is often dangerous in these places and offer as another option. Then there is of course "raiding" a town or place of the opposite faction. These are very fun and unique.
Overall, WoW is game that makes what you pay to play as cheap. No matter what computer you have or who you are whether your a politician or a pensioner you WILL enjoy this game.