We were there Dec. 31 - Jan. 4 this year -- it was incredibly crowded the entire time. (We had been told things would lighten up after New Year's. Didn't happen.) The decorations (especially the Castle) were gorgeous, and we still saw just about everything on our must-do list, but I was amazed by the sheer number of people. (We've been during Spring Break, so it's not like we're used to empty parks or anything.) The weather: Be ready for anything. It was 80 our first day. Two days later, the high was in the 40s, and the news was doing reports on iguanas falling out of trees due to the cold. (Fortunately, we came from Michigan and had all our winter gear with us.)