I love it! If Aion launched like this, it would have kept a lot more of the pop then it did.
1.) PvE
A - Levling is faster, increase in xp gains
B - easeir to find quests, and more of them. They now shown on the map
C - Gear is a lot easier to obtain. You still have to work for it. Especially the gold stuff. But it's possible to get now.
D - Money, they upped the quest rewards a LOT. I've seen some that used to be 5k, now give 80k kinah. You can buy stuff!
2.) PvP
Not to much change. The biggest an most notable though is the rift nerf. When in your home land you get a PvP buff against rifters. 80% in Eltnen and 40% in Heiron. In short you have a chance to fight back or run away from twinks now.
A lot of other changes too. Pets, and stuff. But those are the biggest. I love it!