Who’s going? If it’s just adults or if you have older kids it will probably be fine. Young, distractable kids will be more distracted by stuff and might slow you down. We had 1.5 days there, and were first timers, with express and early entry and 8 pm closures, also at a holiday time b/c it was the start of Thanksgiving week. We saw a relatively small amount of the parks, but our goals were mostly centered around HP and Simpsons (husband is a big fan). I spent a lot of time photographing my kids who were wearing HP stuff so I can appreciate how that slowed us down . One thing I will say is that even with express it seemed like we always waited a long time for the hogwarts express. I really didn’t expect that. For us it was longer wait from US to IOA, but that could have been the time of day. I also skipped the bumblebee man’s tacos b/c every time I passed by there was a huge line, then later on it was closed before other stuff.