we started on piana and we are about to hit 80 soon, some of my friends got 80 already.
Just to let u know, 72 and 80 rogue skills are bugged on Human side. so karus npc are working fine.
also some of the huge exp quests are not working for humans. So far karus has no bugs on their npc.
so if some of u wondering, u have to spend 1.6k npoints to go karus and 1.6k to return human