it was hot during the day but the 1-2 hour rains each evening about 5:00 or 6:00 helped keep it bearable. nothing was cancelled for the nights we planned. lines were very reasonable for the most part:
waited 5 min. for magic carpets, pirates, winnie the pooh
10 min. for haunted mansion, hall of presidents, and most everything else except for like space, splash & big thunder mountains, test track & mission space.
waited 20 min. for those
only problem i had with lines was that for a few rides their wait times were WAY off. buzz lightyear was posting a 20 min. wait & we waited for over an hour, primeval whirl posted 20 min. wait and we waited for 50 min. they were issuing WAY too many fastpasses. i don't know what has happened to the fastpass deal where only X number of passes per hour are distributed. when we were in line for several rides there would be hundreds of people passing us in the fastpass line. i hope they straighten it out soon. i think fastpasses are great but i have never known disney to be so far off on their wait times before.
and, yes, we had a GREAT time!!!