We were there last year Aug 30th thru Sept 9th, and it was empty. Other than MK on Sat we walked right on just about everything never used FP. The weather was decent, still hot but not as hot as July. The park hours are shorter but since the lines were so small we were able to do everything we wanted to do. When we were riding one of the boats to MGM the captain said that this was a transition time and the first 2 weeks of Sept are never crowded.
Do far this is our favorite time of the year.....
Denise