There is more personal development between the characters in this movie, which is a nice expansion to the movie franchise.
As in all of the HP movies so far, various liberties are taken to condense a year's worth of time into a 2-1/2 hour movie.
However, there are a few issues that give it an "average" rating.
1. Not enough explanation about Riddle and the horcruxes / potential horcruxes. 2. The Burrow scene at Christmas time. 3. Ending was markedly different from the book. Different enough to make you think "why did they do that?"
Anyway, worth seeing, but it was not the best of the series. Definitely had way more potential than it exhibited.