I've changed my vision on this:
Once you're fully rested, 1.5 lvls (max rested time), and lvl 78 this is by far THE best way of getting to level 80 in no time (yes, i've done 600k non rested, 1.2m exp per hour rested). This absolutely ROCKS.
BUT
If you are NOT rested, the exp isn't better than the exp from just questing in Icecrown, starting the pre-dailies quests, following some epic quest lines, etc.
I managed to get 600k exp/h, non rested, while just questing around.
This is:
- much more fun, grinding those flying basterds is just boring as hell.
- provides much more money, 78-80 while questing got me over 1.5k gold, opposite to 0,00 gold while farming those flying basterds.
- much better for your future dailies, if you do all the pre-quests, already get revered/honored, then you will have it a lot easier in your future.
So, if rested > AWESOME.
If not > Don't do this (unless you really want to).