I just returned and yes they were packed. We were there 8/17-8/21 and other than one morning at MK where everything was quiet, the rest of our trip we experienced long waits. Test track wait times were always above 1 hour, the same for Soarin (we went 3 different times and it was always the same). Fast passes were gone early, usually by 1:00. MK was extremely busy unless you got there first thing in the AM. The wait times for POC was 45 minutes Saturday and about 30 minutes most other times. Got to AK on Thursday 8/17 and could ride nothing without a 45 minute wait at the safari and more than 1 hour at EE--fast passes gone. We arrived at 2:00PM and left by 4:00PM. We actually tried MK during Sunday EMH and that was a zoo. After EMH started the wait times doubled with buzz going from 20 minutes to 45 minute waits. It took 30 minutes to get down mainstreet when we arrived at 9:00PM. We stayed until 10:30PM, after waiting in line at TTC and they had to open the que at TTC to accommodate the line.....
I know alot of folks say they go there during this time in the past, but the past is the past, and things are much different this year than any other year. We don't ever go during the holidays so can't compare it to that. But we do go for 2 weeks every early May and late October where the crowds are moderate. The crowds we experienced during our 5 day trip this past week were much heavier than our spring and fall crowds. The only quiet and easy time we had was Friday morning at MK during tiny tot early morning and we did indeed walk on most rides with no wait. It changed by lunch time and got much more crowded after noon. We stayed until 1:00PM and left.