So i tried the open beta of Aion yesterday. I used http://www.mobiusxp.com/?p=101 to join the chinese beta. I also had to hunt down enu.pak from http://bass-ackwards.net/ftp/AION/ENU.pak. After this though, the game was fully installed in english and i had a chance to play. Below you can see a variety of screenshots i took during my first few hours.
The game itself is beautiful and runs very smoothly. I enjoyed myself quite a bit and am about to load it up again.