Last September I went on a 9 day trip to WDW and it was awesome. No matter what park we went to, the ride wait times didn't exceed 15 min (except Toy Story at DHS in which we just hit that ride at rope drop and we were fine). But like said above, make your dining reservations as soon as you can, cause they will fill... I liked it so much, that I have a 13 day trip planned this year from Sept 15-28... We stayed at ASMovies last year, and decided to upgrade to CBR this year... I went 4 years ago in july, and I will NEVER do that again... September is a much better way to go...