I may be in the minority, but I really enjoyed EE as a coaster. It wasn't all that thrilling, but it was just . . fun. And smooth. And I particularly liked the backward section which I thought was unique to any coaster I've been on. Disney's coasters are not very thrilling (unless you count Space Mountain but that's more fearing for your safety than anything else) which is what they're aiming for: family entertainment. Not so thrilling so kids can enjoy it, but still fun so teens and adults can too. IDK I think the only time disney really took a risk with any substantial g forces was on ToT, which obviously has some killer negative Gs.
As for overrated attraction, I remember being really let down by Kali River Rapids' lack of rapids. Maybe it was just a bum ride, but (save for the short drop) it was just a very slow bob around the course with very little to look at. Then again, I'm not sure how high expectations are, so I'm not sure it counts as overrated.