we were there the last week in April and first 3 days in May this year. I would say that it was still fairly busy but it was nothing like Christmas week. We were always there at park opening and did a few hours then took a break back at VWL and went back after dinner for evening entertainment. Doing that we found lines weren't that bad at all but from around 11:00 till dinner, it was very busy if you were a late arrival. We had fast passes for Mickey's Philharmagic after lunch one day and Fantasy Land was a madhouse! PACKED busy. We were so glad we had gone early so we could get in and knock out those rides first then GET OUT. :lol: By 11:00 lines for the "big stuff" were approaching an hour long.
The weather was great! Not too too hot (it was hotter for the October trip we recently returned from!) and only one day with rain.
If you are looking for a "no crowds" time, this isn't it but if you are looking for moderate crowds with longer park hours, it's a great time to go! As long as you are there early and do the big stuff early and use fast passes, you'll not have to wait very long for anything.