I went to my first ever MNSSHP last night. I was with a group that included 2 CMs, so they led our group of 5 and we had a great time! I agree with someone else that it seems like some parts of the park would be really crowded and then another part would be empty. We happened across several very short character lines (we waited to meet Jafar for about 15 min, saw lines for Buzz and Lotso that looked quite short)...however, the Dwarfs line and line for Minnie/Daisy/Donald were excessively long. We walked by numerous big rides that showed wait times under 10 mins. We did rides from 5-7 and never had waits (but we did pick rides that weren't listing waits like IASW, Winnie the Pooh, LM, etc.). We all left with a full bag of candy, each, and most candy stops only took as long as it took to walk through the queue at a normal pace. We saw the first parade in Frontierland and only got there about 30 mins ahead of the parade, but had a few front row spots. We came out of Tomorrowland at the end of the castle projection show and stood right beside the control booth (I guess that's what it was?). This wasn't a good spot for the castle show but it was great for fireworks! We made our way to the front of the castle to watch the Hocus Pocus show and we were in the street right in front of the castle. That was probably the only time it felt super crowded. Overall, I really enjoyed my night, but part of that was probably because I didn't have any expectations about how it would go and it helped that I had the 2 CMs who knew how to time things and where the good candy spots typically were, as well.
Oh, and my wristband was on my left. I didn't realize people were being told they needed them on the right. I wear my magic band, bracelets, etc on my left, so that's the arm I gave them and the CM didn't say anything. I didn't have anyone specifically ask me for my band at any point, either.
So out if curiousity, where were the "good" candy spots...I thought they were all the same except the one by Space mountain that gives craisins.