Expo:
Great signage at the event and Expo had a ton of booths with volunteers manning stations, etc. Little to no wait (but we dropped by the Expo 2 hours before it was set to close) to collect race kit.

The Event:
Did the 42K, and it was a bit of a blur. Next time, would definitely stay on Disney property as parking and the crowds were a bit of a mess at 2:30AM. A ton of portapotties in the event "village" and everything was very well organized.

Moderate crowding in the first 7k, and in the last 2k, but overall it was a magical experience! There were a ton of Disney characters and more than enough aid stations. Swag was the best I've seen around, but it's Disney, so they *have* to get that right.

I would definitely do this again, if I had the time!

Pre-Race / Registration

I booked via a travel agency, so everything was organized (i.e. waivers, course maps, etc.) They offer an inspection day, where they drive you out to the Great Wall the day before to inspect the course. I didn't attend as I was still jet lagged, after arriving that morning, but I heard it was very useful...

Course

The course was very challenging given the 5,000+ steps involved, coupled with the heat (100F+) and virtually no shade on the Great Wall. With that being said, there was ample water and medical staff spread across the Wall.

Overall

It was a race that was organized, and have no regrets in doing this!