Two main problems that stopped me from playing:
Loading outdoor areas. This SUCKS big time and is unnacceptable in a MMO game made after 2001 or so. Even more glaring is that the first version of FFXIV didn't have this.
Can't use my mouse-wheel to bind keys. That's it. And no, I don't want to use AutoHotkey to do it, I want to use the in-game hotkey interface.
If they removed that annoying loading of outdoor areas I would be very tempted to relent and install AutoHotkey to play the game.