I got MemoryMaker ahead of time. It's difficult to know if this is cost effective, but we like ride photos and we usually eat at least once at Chef Mickey's and buy the photo, so it's mostly worth it. The process went smoothly, altho seemed to involve a lot of inexplicable duplicates plus having to wade through deleting all the Belle photos you don't want to get to the ones you do (yeah, I know -- these are dumb things to complain about). You're supposed to activate it at Will Call but you can actually do the whole process online. If you are going to buy it online, buy it at least 3 days ahead of time and save $50.
Finally, we were sick. Well, everyone in the group but me. It started with my son, who was really pretty good about getting out of bed to throw up and thus we only needed spare sheets. A. didn't make it out of bed at all, so she needed a full bedding change -- but then she only threw up the one time instead of at frequent intervals for most of 12 hours. R., of course, took care of himself. T. went on to have the runs (but this happens kind of often, because he doesn't like to wash his hands, touches everything and then licks his fingers. If he doesn't die young, he'll have the most highly trained immune system on the planet), as did R.; A. did not. Nor did I. I truly do not understand what happened, but I am suspicious that there were two distinct bugs involved.
There will probably be further trip reports, altho I'll note here that the new IT stuff (MyDisneyExperience) is up and running and working quite well. They've retired the old FastPass and are evolving the new FastPass. 7 Dwarves was not open yet, so I cannot report back on that.