Aion : all questing and no grind until level ...

[CGuru]

Aion is quite a grind and it only gets worse the higher level you get. There is hope though the latest test Korean test server build they have increased XP from quests by a huge amount.

Here is an comparison of the new and old quest XP.



This is just on the Korean test server and it is unsure if and/or when the update will come to the NA servers.
It looks like NCSoft is trying to improve their game.

edit: I found this information in this thread Incoming Updates to 1.5 (XP Boosts and Flying Beasts o_O)