The only current bad thing is that it's still in Private Beta Phase 2, meaning you need a key, so the forums are spammed with people asking for others keys.
Me: Yea, my key is.....SORRY, NO KEY FOR YOU.
Player 1: Why did a two hour maintenance create seven hours worth of glitches and downtime?
Player 2: OMG. QUIT QQ TEH GAME IZ FREEEEEEEEE!