I felt that the movie could have been so much more than what it was. I did not really like some of the plot changes, and I thought the romantic parts of the movie were far too in-your-face. The ending to me was the most disappointing aspect. It seemed rushed, and I thought it was much more exciting and emotional in the book.
Overall, however, it is a good movie that furthers the plotline and anticipation for the finale films. Any HP fan should see it, just don't expect it to match the greatness of the book.