I (honestly) don't know that much about it myself ...
Up until a week ago I didn't really pay attention to it because of how similar to WoW it appears to be; I really did enjoy WoW but I don't really ever want to do an end-game raid ever again. What interests me about the game is it seems like Mythic took the concept of battlegrounds from WoW (which I hear were practically stolen from Guild Wars) to the next logical level.
Other things I have heard, which will be the main things I check out, is there was an effort to greatly reduce the punishment of playing certain classes (like a healer) in order to make the game more enjoyable for all.