Cloud servers and cross-DC queueing can't come any faster. I've never had my character on Aether but my entire raid static is on Aether and it's frustrating for everyone to have to transfer to Dynamis just to get our raid group together when I'm the only one there.

Beyond that, joining Hunt Trains or PvP events as well as other social/content related events becomes more and more difficult as I often can't move around much. And it's not just isolated to Aether either, If there's a PvPrimal event happening, Primal often ends up fully congested and I can't participate. I understand the why's but the results have ended up counter-intuitive post expansion release.