Most quests in the mid to high range got a good XP boost, items at the end of chains, some generalization to gold, etc. If you have any issues please report it to the forums. This should make quests a little more interesting and worth it to run. I will be adding a 'level' display to the quest window so you can see if the quest is worth to run as well, as I highly assume that some people run quests that are well past their current level which would yield a lot less XP.
We are also working on some cool scripted quests, so stay tuned!