TBH, I think the hardest aspect of the Wish class for
ECV users is to get to the adult section on deck 13 aft and the Rose/Palo/Enchante on deck 12 aft. Yes, there are elevators, but it's only the aftermost 2 elevators in the aft bank that go up to those decks; the rest stop at deck 11/Marcelline Market. Other than that, the passageways are wide, though the entrance to Haunted Mansion may require some maneuvering. That being said, we say ECVs in HM on more than one occasion last month.