Spoiler free review: rode it twice today. It is visual overload, and so many details to see. Tech wise it's pretty cool and has some fun, unexpected elements. It is "rockier" than I was expecting, think TSMM but a bit more. I was fortunate to be able to interview Kevin Rafferty and could not get an exact number of hidden mickeys but it is the attraction with the most, I counted 10, plus nods to Mickey's birth year, Walt's birth year, GMR and other things.
I would not wait standby for more than 45 minutes for it though