If I was going overseas and could fit in a convention I would prioritise this over something else like TFCON.
the official convention has official panels by Hasbro staff, you get to see what's coming and aren't always allowed to take pictures to share. You get to see the new toy displays on the convention floor.
the rest of the convention experience is something I would expect to be fairly similar. Except there is a focus on 3rd party toys at fan conventions. don't get me wrong I like third party toys, there are some crackers out there but I would rather hear about the upcoming Hasbro/Takara product first hand.