The only complaint I've ever heard anyone I have played with in game with the buffs, etc. is that in 24 person bosses you can't keep track of your buffs bc they don't even show up on the bar for you to see. That has nothing to even do with buffs it is damage skills so I hope this new UI is not a huge waste of time.

With that being said inv space is a bigger problem to gameplay than 24 person dots not showing up.