We went from April 27 - May 7 this year. We had a couple days that were really hot, a couple days with a little bit of rain, one evening with a massive downpour(started right when Wishes began and continued the whole time we were exiting, waiting for the buses, then walking from the bus stop to our room at POR), and a couple of relatively cool and really nice days. We planned the trip for this time of year to be between the easter/spring break crowds and the summer crowds. Then we found out about the Happiest Celebration kick-off and got worried about crowds. Crowds weren't bad most of the time. The only day that seemed crowded was Friday, May 6th at Epcot. And that was to be expected with Soarin officially opening on May 5th. Overall, I thought it was a very nice time to go. But then again, it was our first trip, so I can't compare it to other times of year.