Ok so I have played for about 2hrs now and I will add my thoughts so far. I probably wont play much more before uninstalling as I cant get the game sound to work again and, well its all in Korean.
Anyway, first off the graphics. The game is pretty but it still looks a little rough around the edges and the character models are not impressive. They also don't translate to what you create in the character creator. The creator has a decent amount of customization options and the characters do look before you log in. I can't speak for the sounds as they do not work.
Animations are stiff, especially the combat animations. My character doesn't feel like part of the world, like I have any weight. I fight like I am a newly animated stone statue or something, not impressive. I played a warrior for my two hours and the melee animations aren't really anything special. We might be spoiled from GW2 but thats a good thing. While we are frustrated with GW2's shortcomings it has set the bar higher on certain things.
I can't really speak for anything else UI wise besides the fact that its kinda cluttered, there are a shit ton of menus and the map runs across the top right of your screen like a spider crack in the glass. I am going to assume you can tweak this stuff a bit more than just moving chat boxes like I did, but I dont read/speak Korean so no go there. No one answered me in English at this time of day on the server.
I might try to play again with a different race/class and check out some housing/ship stuff.