Number 6 in the series was a disappointment to me. It seemed to skip through so many aspects of the story and didn't even follow the story most of the time. I was pleasantly surprised to see that the book was closely followed for part 1 of the Deathly Hallows. Spreading the final book into 2 movies was an excellent idea to really tell the story as it should be told.
That being said, some of the filming was a little weird to me and should have been redone at points.