I fully agree about the nude kissing scene-- it was just way over the top.
I think they did a pretty good job of editing. I would've liked to see more about Kreacher's relationship to Harry, but seeing as they completely omitted his role in Order of the Phoenix, there wouldn't have been time to give all the background now. The one thing I think definitely needed more time/explanation was the Bathilda Bagshot scene. They made her seem like just a random evil witch.
Overall I'm very satisfied with this one and think it was a great move to split up the book. I can't wait for the next one! It will cover a much shorter fraction of the book, but it'll be the action fraction.