I tried to run the Temple of Elemental Evil on Legendary last night. I say tried because I ran out of time after spend more than an hour on the "first part" after running it I still probably won't run the quests.
I don't run TOEE currently because it is too long and too much of a slog, uninteresting content and the XP is way to low. The idea of splitting it apart into smaller quests on the surface makes a lot of sense. After seeing the loot last preview I think it needs some adjustment but ...
Lets just start and say it is not the way I would have split up the quests. I guess I had visions of the exterior and interior of the base quests as 'wilderness adventure areas', with rares as optionals and explorers with the end sections of the nodes|quests as the new shorter quests. It made sense to me based upon how it was described before seeing it. Now instead of one super long quest, that an uninteresting slog with low XP, it appears we have multiple uninteresting slogs, I mean long quests with low XP.