Hi,
I attended the one last year. It was busy but know more than other times. We enjoyed it and are thinking about it again. The one thing is that the talent discussions you get access to is just that. There is no meet and greet scheduled. You could run into them somewhere but that is it. We are Harry Potter fans and it was cool to be there. The discussion events and other scheduled ones work like this. If you have the package you wait in a line and that is on a first come first serve basis. If you want a good seat you will have to wait in line early. Now they do open it up to non package members only after all the package members get in.
The gala event was cool we had the Harry Potter section to ourselves that night. I believe last year their were about 1,500 people who attended it. It did get a little crowded for awhile.
I went with higher expectations last time so I was a little disappointed when comparing it. However, if I didn't have expectations it was a good event. My daughter loved the fact that she was still in the same place with the stars.
It really is a personal choice. I would suggest if you do don't go with expectations. Just enjoy what they give you. If you look on this forum you will see video of last years.
Good luck!