To all parents out there, this game is not violent at all. The only violent part is the slightly spooky monsters, especially towards the higher levels. The only reason why this game is rated T, is because, let's face it, there are nutjobs out there. This game should be rated E 10+.
Anyway, this game is great. Awesome even. Even with the low level limit (only level 20) this game has enough extra material to make you continue playing it for a while. It also has no monthly subscription, AND it also has great PvP, which the game essentially revolves around.
This game is all about strategy. Which stats and skills you use will come down to the situation you will eb in during combat. You have to know your opponent very well. As an added bonus, on PvP characters, you can actually change secondary jobs, adding even MORE strategic value. Basically, if you don't like to use your brain, Guild Wars is not for you.