I was surprised that the kids wanted to see it. I was even more surprised that they sat through all three hours of it without visible loss of interest.
Short review: A great big mess of a movie, but a beautifully rendered mess. I expect I'll be seeing it several times (probably not on the big screen again, though).
Up sides: Stellar acting from a stellar cast. Magnificent visuals.
Down side: Three hours just isn't time enough to fully elaborate six separate plots, even though they are theoretically inter-related plots. I don't know what the filmmakers could have done to remedy that without the thing dragging out to another three hours (at least). Maybe nothing.
At any rate, I didn't leave the film wanting my three hours back. Not a grand slam, maybe not even a home run, but at least a ground rule double.