We went and really enjoyed it. My daughter enjoyed the children's activities and I really enjoyed the talks. I picked up a lot of useful business cards and my daughter gained a pen pal.

That being said, it's expensive enough that I would only go if it were in a convenient location. I had to make an effort to get there last year, but it was still reasonably convenient. It's too far this year, so I'm hoping maybe it will be in a more convenient location next year.