The actors all did a tremendously good job getting into their characters, and embellishing their characters where the book was silent. Edward and Bella were especially portrayed well. I could really see Edward's self-loathing and Bella's stubbornness and awkwardness. Also, they did have great chemistry.
The beginning is a bit awkward and scenes are out of place from the book, but that's necessary, I guess. Honestly, it matched the beginning tempo of the book. The last half is just as riveting and compelling as the last half of Twilight by Stephenie Meyer. Well done!