Although I thought twilight was better, this was a great sequel. I am one who always thinks the first is the best no matter the movie because it sets the tone. With that said, I thought NM was great.
They stuck to the story. And even though they added a couple scenes, it didn't take away from the story at all.
They blended in well, as if they were in the full draft of the book, but edited out. If you are a true fan of the Twilight series, you will enjoy this film.