I knew 8 families that went to WDW last year. When my friend said it was so crowded - 30 minute waits! I laughed. We have always gone in May/June where waits can be 60 to 120 minutes. 30 minutes is nothing to us. I haven't even planned out every minute because, even with Jersey week, I'm expecting it to be less crowded than what I'm used to.
This year, I only know of 2 other families going.
Last year, I was also so worried about the hotel being booked (couldn't change ressie). However, it was manageable (first week of June). I believe alot of conventions take place so that doesn't overload the parks, just the hotels.
Anna
P.S. The only people I know that say "joisy" are from New York!