[Esus]

EDIT: OMG TEH SPOILERS. LOOK AWAY!










Assuming you want spoilers, I really liked the book.
The end was the best of any book, if only because of the sheer shock of Dumbledore dying. It was much more stark than Sirius' death, as Sirius was in a fight and you expect some people to die.
With Dumbledore, it was already established that no one but Draco was to kill him, and that Draco couldn't do it. And then Snape walked out, you expected him to help Dumbledore, and not suddenly Avada Kedavra him. Especially as Dumbledore was disarmed and already weak from the green potion.




END OF SPOILERS BIATCH