I liked the archives area, but I was maybe expecting a little more as well. I got to the Expo about 11am, on Friday, so I was able to see all the exhibits fairly easy, since the crowds were not so large. I've been to other conventions, and while it was nice to have so much space in the convention hall, it made it seem like there wasn't much there.
I enjoyed the World of Color presentation, much better than the media presentation that has been posted on You Tube ... I especially enjoyed the animation of what the show will look like.
I'm sure the expo will get better. I think it's on the right track with really just some minor adjustments needed.