In past years, it's been great, unless you have a mortal fear of "love-bugs".
This year, with FTP, I couldn't even guess. I've heard resorts are packed and crowds are above normal.
Still, if you stick with the age-old and correct advice of hitting your chosen park early and pools in the afternoon, you should be fine.
This time last year we did all the major fantasy-land rides in under three hours by starting as soon as the parks opened.
As I said though, with FTP you might expect a different scenario with the crowds. Looks like "off season" won't be so "off" with year.