A few added notes that I have had some sleep...
From my own eyes and experience, merch WAS sold out before midnight. I got there before 11:30 (which is when I set up for fireworks), and the only thing left were pins. Shortly after I bought mine, they were completely out of everything. Earlier in the night, when asking a CM how long the wait to buy things was, she told me "at least 2 hours". So it was bedlam at points.
The meet and greet lines got less closer to fireworks time. You could knock a good 3 of them out in less than an hour after 11:30 (source: My girlfriend who did exactly that, as she didn't want to sit around while I stood staring at a blank sky waiting for 12:45)
Food/Drink lines were nuts. Easiest to get your drinks near backlot tour. More bartenders = faster moving lines. Average wait time to get a drink was about 20 minutes. Drinks were weak, and overpriced...as expected. The Apple ice cubes were neat at least.
The Pre-Que problem could easily be solved by doing a HARD CLOSE at 7 and a reopen at 9. Letting people hang around in the parks (and thus in lines) in that hour between "close" and event is a huge part of what created the problem. Stores and restaurants also remained open during that hour, which created a lot of lingering as well. The amount of VERY vocal complaints I heard at 8 at the Animation Courtyard regarding Maleficent being at capacity at 8 (event official start time) was proof positive that the system of keeping the park "open" during the switch over is flawed. These capacity issues was a big chunk of what were raising requests for refunds (a lot of which were granted), the other chunk was from the nature of the Oogie Boogie show.
Time for me to get on a few bad sides here:
There were FAR too many children at this event who were, in my opinion, way too young to be around a lot of what was going on. Alcohol (weak or not, its there), lots of people, lots of villains, and obvious draw for ADULT locals, etc...not something you should be wheeling your 3 year old around at close to midnight. Crying children at every corner, upset parents wondering how Disney could let their kids be exposed to the horrors of the Oogie Boogie show (which DID have a warning attached, just not on the map), strollers barreling through hordes of dancing attendees without concern of injury to others....all of that contributed to some of the unpleasantness of the event..at least for me.
I stated it earlier but I should elaborate a tad...but to those who said how DHS with its lack of rides couldn't support something like this, I remind you that the rides were mostly walk ons the entire event. The problem isn't with "things to do", its size. WAY better than last years Friday the 13th fiasco which was limited to half the park, but still needs more breathing room. They spent a LOT of money on this event, and a bit more could have been used to use some of the less common areas for things, such as the lot next to Rock n Roller coaster or the now closed AFI area.
It seems like I am complaining a lot, and I'm really not. The positives FAR outweighed the negatives on this event for me. I said earlier how much I enjoyed the roaming characters, and would LOVE that aspect to be an every day thing. It went over REALLY REALLY well with the majority of the people, and didn't require waiting an hour to do. The "dance parties" were easily avoidable if those aren't your thing, unlike last year where you were really forced to be near them. The character selection was fantastic, had a bit for every type of fan, and not a single meet and greet went un-loved.
I do hope they do this again, but unless they fix a LOT of the bigger issues, I shall not be attending.