Amazing graphics and presentation, but, like most MMOs, it's only at it's best when you're playing with friends.
Presentation aside, the game play is slightly different. Like most MMOs you level up, point and click to kill and learn new skills. Yet, somehow, Guild Wars manages to be different. The level cap in the game is 20. Although this sounds low and discouraging it actually works well. it takes a long time to get to Level 20, and even once you're there the game is far form over. when you begin the game you pick your profession: Warrior, Monk, ranger, etc. Within these professions are various character traits. depending on how you sue these traits, you can be a different thing. For example, the Warrior class can have warriors that use swords, axe warriors, hammer warriors, or even tactical warriors. On top of that all characters get to choose a secondary class. these secondary classes work in the same way. The best thing about Guild Wars is that you're barely tied down. you can redistribute you attribute points at any time. This means in a second you can change from being an Axe Warrior to a Sword warrior. Although your base class can never change your secondary class can change whenever. This results in endless combinations and the possibility to play on well after level 20.
Bottom line is Guild Wars is an amazing game. Although it is lacking some of the basic elements of an MMO it makes up for it in it's price and game play. you must give this a try if you're in to MMOs.