we were there in august and it was crowded but not undoable. just start early ie: get there at opening not 2 hours later, go on the bigest rides first / send someone to get fastpasses for a big ride and have them meet you at the ride you all went to, ride during parades, dont go to the hotel to take breaks just go to an indoor ride like hall of pres. the norway ride or the mexico ride and spaceship earth at epcot etc. don't eat many table service meals, they take too ling when it busy and your spending a lot of time in lines, anymore theres enough variety you wont be eating burgers every meal at cs. also go expecting it to be crowded expect waiting longer in rides etc. so you wont get as much in. we also went at easter one of the most crowded times and did fine. good luck.