Just got back from the party! It was super hot of course, but tolerable once the party started and the sun went down (although I have no idea how those with elaborate costumes survived). I ditched my usual black Halloween t-shirt in favor of a much lighter shirt, and don't regret that decision one bit.
Treat trails seemed pretty quick, even at the start of the night -- faster than I remember from previous years but then again this is my first Monday night party. I only stopped at maybe half the treat trails but I still somehow ended up nearly filling my AP tote (which you can pick up where Big Thunder Trail ends, and also "see" the dragon). My favorite treat trail is the one that goes through the Launch Bay -- not just because it's indoors and air-conditioned (sooooo nice!), but also because it was pretty cool to go trick-or-treating in the cantina. Plus, when I reached the last station, they were refreshing it with a bunch of Peeps and I was like, "ooooooh, Peeps!" and the guy gave me two handfuls.
Based on the reports from the first night, I decided to wait until the second parade since I figured it would be easy to grab a spot (and I would be wilting by then, anyway, and happy to rest before heading home). But most of the curb spots for the second parade were already claimed pretty much right after the fireworks.
I thought it'd be easy to snag a spot at 10pm but ended up going all the way to Town Hall and finding a bit of curb still free right in front (here's a tip -- you'll find a couple of carts parked right in front, selling those light-up toys/ears/etc -- they'll move a few minutes before the parade and you can claim that bit of curb without having to wait forever!).
I'm generally not a fan of parades (although I loved PtN) so I wanted to see this more for the novelty, and was pleasantly surprised by how much I enjoyed it. Dr. Facilier even winked at me!

Definitely recommend taking the time to watch the parade, even if you're not a parade person.
Even though I wish the weather would have been nicer, it was totally worth it and I'm already looking forward to next year. Now I have to sort out the candy and figure out which ones are worth keeping and which ones I'll give away. Thankfully, there are none of those awful "peanut chews" this year -- it's all the good stuff!