The first night was great. I would say it was just right. I don't recall waiting for any length of time for any rides. The crowd was not near as bad as a busy MK day in May we experienced.
There were a few things I wanted to do that I didn't because of the wait -- The fortune tellers in Adventureland, and something else I don't even remember!

So it couldn't have been too important.
It was HOT though! Many guests were wearing, full body cover heavy, hairy costumes. I don't know how they kept from passing out.
Once the sun went down, it was tolerable. But young gals were dressed as Jasmine and I am sure they were plenty comfortable.
MNSSHP was a great time that I would not hesitate to do again.
I wish they had the horseman ride around a little more.
Be sure you get a viewing of the fireworks where no trees or building block your vision. The fireworks SURROUND the park!
It was great to ride the rides at night.
By midnight the place was pretty dead. The CM's were great too.
It was a very memorable night, worth every penny.