it really isn't bad, or at least as bad as it was in WOtLK. agree with Ualla and others that things really aren't noticable. The phasing that I have seen is just between teams that haven't done quests in a certain area so FP's appear empty, mobs unfriendly, etc They still haven't improved phasing in Northrend though from what I have seen, and JambaFollow gives me way too many false positives to the point that I disabled that portion of the addon to keep my sanity.

happy phasing