We spent 16 days in Orlando this summer and a good chunk of it was spent at US/IOA. My niece, 3, had a ball. Suess's Landing is unbelievable. She had so much fun there she never wanted to leave. She also really enjoyed the Sinbad show there and the water fountain. In US she liked Jimmy Neutron (had to the stationary seating), Shrek, Beetlejuice, ET, the pet show, Barney, Fievel's Landing and the water area. When we were at Magic Kingdom she had fun, but kept asking when we were going back to Cat in the Hat. I think if you go with an open mind you'll have a lot of fun. We certainly did.