Disneyland: fiat few months were not getting the projected figures leading to a temporary cash flow WDW: Opened with pretty much no Tomorrowland and half of Fantasyland unfinished. EPCOT: Every attraction broke down opening day, including a serious malfunction on Spaceship Earth that almost led to serious injuries. Universe of Energy took a year to work reliably, while Imagination never worked as intended USF: Everyone knows this disaster. AK: Complaints about the storyline in the safari led to rapid changes
IOA opened relatively ok. The Disney-MGM Studios also, but thats because the majority of attractions (Stunt show, star tours, part of the tour) were not yet finished.