Snape kills Dumbledore!!! Oh... I mean
I watched it last night, after reading the book in the past and I thought it was quite good. It was a little slow at times but still very good to watch. I personally thought that I wouldn't have liked it as much if I hadn't read the book, although one of my mates who I was with hadn't read the book but really liked it.
I think it stuck quite well to the book, considereing some other movies based on books