Please, dismiss all bad opinions of this game. It's been over 2 years since it's launch and everything is better. And also, the expansion has been released: Which brings the beauty of Khitai to the game.
I've only been playing for two months, but I have encountered no problems that people have been saying were there, at launch. The levelling is steady, not too easy, and not too hard. Offline levelling has been introduced, which gives you one level-up to any of your characters above level 50, for each 4-days you have an active subscription. Quests are intriguing, the graphics are amazing (with added DX10 support), the music matches the game's style greatly, and hey, the community is the best.
I'm not going to go into a full review, as well, it doesn't need one! The game speaks for itself, just know that the game is the greatest. There's no more problems with this game. Well, there are, but they're not worth mentioning. But be warned, you'll need a good pc for this. I'm using a GTX275 graphics card, and I can handle it with about 80% stability on medium settings. Although, if you have, let's say.. A GTX 480 or ATI equivalent: You have no reason not to buy this game. It's fun all through!