10th May trip in a row for us. The weather tends to be hot, a few years smokey from fires. Crowds are manageable to heavy. Not as heavy as summer or holidays, but not lite like late November early December. More school groups, some shorter hours at MK during grad night festivities. Some black out times at PI while teens hold functions there. No e-ticket nights last year during the 2 weeks we were there because of grad nights. Proms at the resorts with conference facilities. Lots of "love bugs". Need that sunscreen--it's a must!! I don't burn easily, and don't need it for our fall trip, but need it everyday during the spring (just a tip)! Lots of great flower power concerts at EPCOT in the evenings, especially for us 70s kids. JMHO, I believe that since Easter is late April this year, I feel that alot of us regular May goers will be flocking within a 3 week window, so to avoid both Easter visitors and Memorial Day visitors. We'll be there for 15 days and can't wait! (May 3-17) It's been 3 months since my last trip and I'm going nuts!