Half-hour too long; the ending was totally butchered and the depiction of the key event was all wrong; the "new" scenes worked well; characterisation of main characters pretty good; weird interpretation of Horace Slughorn; Alan Rickman at his absolute best; Draco Malfoy scenes pretty good; is there a part of Britain where it snows that much?
In all, the weakest of the six movies so far and WB need to up their game massively if they are to go out with a bang with the Deadly Hallows. But the kids loved it, and I guess that's what counts.