I figured I'd repost this here since it might help answer some questions I have seen asked.
My family went to
MNSSHP last year for the first time and loved it so much we decided to go again this year as the only Disney portion of our recent trip. Sadly, this party paled in comparison mainly due to grouchy cast members and crowds.
We went to the 9/27 party. Arrived just after 4 via ferry. On our way to the bag check station closest to the ferry there was a security guard that forced us and a few other people (while letting plenty of people go to the one we wanted to go to) to go to the bag check near the center of the entrance which was twice as long as the one which was closer to where we were. After that long wait we were able to get into the party quickly and get our bands.
During the rain storm, I parked under an awning near the exit of a closed ride with my son and stroller while my wife went to buy ponchos, this was about 6:30ish and was told by a cast member I couldn't stand there because it was going to be used for the party at 7. I told her I was just waiting for my wife to return with ponchos to which she replied "you can't wait here." Since it was pouring at the time I asked where I could wait that was dry and she pointed at a restaurant across from where I was standing. I went into the restaurant, now soaked, and tried to find someplace to sit, but there wasn't anywhere so I stood near a window so I could keep an eye out for my wife, but I was once again told I couldn't wait where I was and I needed to find a table. There were no tables, so I just left and waited outside since the rain had slowed enough to not be an issue and I was already wet.
After that we got my son changed out of his wet clothes and into his costume and started to trick or treat. After a couple of (long) lines it was apparent the people giving out the candy were not doing so in similar ways. I know of at least 3 candy lines were one side was giving out handfuls of candy and the other side was giving out between 1 and 3 pieces.
We also had an issue with a cast member yelling at my 3 year old. My son saw the barrel of candy and thought he could reach in and grab a handful, I saw him reaching out and put my hands on his shoulders to stop him and at the same time I was starting to explain to him that he needed to use his bag she yelled "don't put your hands in the bucket." This completely shut my son down, who didn't think he was doing anything wrong. As some of you parents know, how you talk to a small child will determine their reaction and his reaction was fear and shame so he didn't want to go into any more candy lines.
I noticed some people at the same party said most rides were walk on, but that was not true for my experience, we had to wait 10-20 minutes for most rides (Snow White seemed to be closed every time we passed it so I don't know what the wait for it would have been). While that is not long, I do not consider it "walk-on". Last year we walked on more rides than we had to wait for, this time it was the opposite.
I found the crowds this year to be much heavier than last year and they stayed in the park much longer. Last year the crowds started to thin out around 10. This year it seemed just as crowded at 10:30 as it did at 7:00.
My son lost his wrist band early in the night and was never asked about it. We were stopped once at 7pm, on Its a Small World, to check for our bands and that was it. We were never asked again. Last year we must have been asked at least a dozen times.
I don't think I'll be going to another party any time soon, while it wasn't completely bad (we got to ride rides, enjoy some dance parties, eat some candy) it just wasn't the same.