Never been there on the actual holiday, but been there the week before and the week after..... I have to say I don't wan't to do that again. The lines were so long, and it was very hard to even walk thru the park.
HOwever, that being said, I LOVE DL, and if it was the only time I could go, I would be there. I would just tell myself ahead of time, that I am going to have long waits, and just make the best of it....