My two daughter's and I had our first "IMAX" experience and seeing "Harry Potter and the Deathly Hollows" was definitely worth it.
The two hours and thirty minutes went by quickly, which of course is a sign of a good movie, and special affects were only out-done by the story line portrayal.
Though there were jumps/gaps not filled in which would have brought greater depth filling in those jumps/gaps would have lead to at least a four hour movie (accounting for the fact that it is a two-part movie) so logistically all in all it was a great presentation.
My 11 year-old, having read the book twice, gave it "two thumbs up"!