I am still having a great deal of fun playing WoW atm with raids and all, so i havent gotten to play FFXIV since. I do still have the game installed though, and i been keeping up with my friend still playing from time to time when not playing WoW with me, as well as message boards here and news.
From what i am hearing, it doesn't seem like the UI is unconsole-lized yet. As long as theres too many button presses and is similar to FFXI, its always going to need more work in today's standard. I am pretty sure people would have bashed the UI at release even without the lag, which is thankfully fixed now. I will hit up my friend's place maybe sometime to muck around.
I think both content and UI/system related issues are big(almost equal in importance), its just which one is a bigger problem at the current time. At start it was UI because you couldn't do anything, now its content since theres nothing to do.
Hope the February Quest patches will be good though, with everyone hyping them up.