Well, I have just finished the Jade Forest and got the achievment and am 8 million / 12 million XP for level 87!!!
Over half way through the 85-90 grind just in the first zone!!!!
Also, there seems to be a bit of a bug with selecting NPCs to talk or hand quests into.
Clicking them often doesn't activate them even though the colour of the cursor has changed to suggest you are in range of them. Sometimes it even goes a bit mad!!
Anyone else experienced this?