Overall we had an amazing time! We were there from 3:45pm til just after 1am and boy did the night fly by.
We did not find it crowded but it was busy.....just a hustle and bustle of people moving about really. Candy lines were long for most of the evening, but the lines move quickly so you never feel like you're waiting. There were lots of prime viewing spots for Wishes. We got an excellent spot five minutes before the second parade.
We have been to a sold out
MNSSHP in the past. Candy lines, character lines, ride lines (mostly non existent) felt the same. The noticeable difference was the fewer people at Wishes and the parade.