We made our first trip to WDW last week (June 4-9) after dozens of trips to
Disneyland. Rained everyday but the last.
I think all of my disappointments were actually just not being familiar with the Florida parks.
I think the biggest one is that everything at WDW opens later, and closes earlier than DL. For example today Disneyland is open 8 am to Midnight, while the Magic Kingdom is open 9 to 11. That's 2 less hours of park time a day.
I'm still mad that Disneyland isn't open until 1 am like is used to be. With Magic Mornings, many of our trips there started at 630 am and ended at 1 am in years past. The World displays at Epcot don't even open until 11 am!
Second was we needed to be better organized and find a way to get the FPs we wanted and the dinner reservations in the same park for the day. Between dinner reservations, and FP for things like Pandora, we spent a lot of time traveling between parks. That was ALL our fault.
Third. We were caught off guard by every bus/monorail/ride operator ending their safety talk (keep your arms and legs inside, etc) with "parents please control your children". We found out why,
because I have never seen more out of control children. DW and I both think we will pay closer attention on our next Disneyland trip to see if this is a national trend or just an east coast issue.