Everything about this movie was awesome. Having followed the series from the start, this movie brilliantly sets up for a finale of truly awesome proportions. The story was a little more dark in comparison to the rest of the series, but the kids aren't at Hogwarts anymore, and that is to be expected.
However, one issue that plagues this movie, and it occurs quite often in the scenes that are in small rooms, or cramped locations, and that is that the camera shakes way too much. Perhaps that was what the cinematographer was going for, but it made most of the scenes where that occurred a bit confusing.