Weather is great....still warm but not uncomfortable, and the humidity is lower. We found the crowds to be moderate and in some cases a bit more than we expected (probably in comparison to trip we took in January, when the crowds were very low).
Epcot tends to generate more traffic with the Food and Wine Festival, plus some school systems have breaks that add to the crowd level. We were considering the same time frame you listed for our trip this year, but the lure of free dining led us to book for next week....