Just got back from it. Personally, I thought it was the best out of the series so far.
I liked the added scenes of Harry/Ginny- one thing Rowling didn't do a very good job of, imo, was developing their relationship in the book. The movie made it seem more real, even if it just leaves off. On the flip side, Ginny's relationship with Dean got cut to one scene together, and one where Hermione suddenly says they had been fighting, which kind of cheapens that.
My biggest complaint was, of course, the lack of Snape. When he was on screen he was great, but I wished he had more scenes. One scene I was really looking forward to was him teaching Defense Against the Dark Arts when he was teaching silent casting. But since everyone can already DO silent casting, I guess it was deemed unnecessary.
Ending kind of came out of the blue, and Ron didn't get one line in, either! WTF! Also- since DH begins at the Burrow with the wedding, and they destroyed the Burrow in this movie- where will the wedding be? Also- I hated that we finally got to see the whole house (inside) just to see it get demolished.
I wouldn't be surprised that, either for the super-deluxe boxed set with all 8 movies, or sometime in 2011 they release extended cuts of all of the movies for the 10th anniversary. I know the first two movies had deleted scenes on the second disc, and there are scenes that were shot for Phoenix that were cut and not included as extras (James-Lily arguing about Snape, McGonagle in a wheelchair after being attacked, etc). There had to have been stuff cut from this movie, consideringt how long it was (though I really didn't notice how long it was until it ended and I checked my watch.)