I saw the midnight premiere of Harry Potter and the Deathly Hallows in Imax and it was amazing!! I was worried that the 6-story high screen would take away from the movie and just be too overwhelming, but it wasn't in any way, it just made the experience 10 times better.
Some people are dissatisfied with this Harry Potter, saying it never reached a climax, left out sooo many details, well, I disagree. The scenes of action are extremely well done and accurate, and of course there isn't an intense super-climax because that will happen in the part 2! I think the directors did a superb job at sticking to the book, sure they left out or adjusted minor details, such as how they arrived at the conclusion that they needed the sword, they used a portkey to get to the burrow in the beginning, etc, but do those details really change anything? NO, they don't! I loved Harry Potter "7.1" and I can't wait for the final movie!!!
Go see it! And if you already saw it, see it again! (I did)