Having heard from a coworker who went once 1 or 2 years ago, it was not a good time. The limited merchandise ran out quick and the big panels don't have enough capacity to fit everyone.
It was a lottery system where you choose preferences and they didn't get into what they wanted but instead had things like preschool Disney and Disney Channel panels chosen for them.
Maybe the Honda Center ensures everyone sees the big panels.
Personally the last 2 D23s it was cringey to watch from the couch at home and I skipped through a lot of it. I can't imagine being stuck in a stadium and hearing the awkward executives talk about "storytelling" and "immersion" while not committing to solid plans.
Your coworker is right....it was a hot mess, with some fun aspects...but i am in no rush to do it again.
My personal mission was accomplished when i attended my first and probably last Major D23 Expo / Experience in Anaheim in 2015.
I enjoyed doing it once, as it is a fun 'bucket list' item for most hardcore Disney or Park fans.
But i was good afterwards and was in no hurry to go back.
I tell everyone -
If you are even remotely thinking about attending one of these massive conventions, DO YOUR RESEARCH ahead of time and tempter your lofty expectations.
It is not quite the happy, fluffy, magical experience Disney markets the Event to be to the masses...and a lot of hard facts potential attendees are soon faced with once arriving are NOT acknowledged.
The biggest issues being organization at the Event and crowd control.
As i said earlier, a hot mess.
Buyer beware..but DO go if you wish to try it just once.
Just know full well what you are getting yourself and your family into if you do.
RESEARCH !!!
-