It is my favorite out of the series, so far. They changed a lot of key points and left out big parts. In the book Harry and Albus guess what the horcruxes might be, giving Harry his starting point in DH. The effects were brilliant, they outperformed the duel between Dumbledore and Voldemort from OotP. They strayed from the book on the relationship level. Harry was supposed to have detention with snape, come back to the common room to find that Ginny had won the quidditch game, then they get together. and the book didn't hint so much at Ron and Hermione. What disappointed me most was that they didn't have the battle between Order of Phoenix with Dumbledore's Army Vs. Death Eaters. That would have been cool to see.