Saw it last night. Loved it. My overall review: it's a much slower paced film than the others and if you haven't read the books, you might find it a bit boring.
For those of us who have read the books, and can view this movie as a piece of a larger whole, you'll appreciate the character development, but mostly you'll like the wizards fight at the end. I've been waiting a few years to see that. It was pretty good.
Luna Lovegood is a scene stealer, and that was a pleasant surprise.
All in all, I liked it. My brother, who doesn't read the books had this to say: I kept waiting for Voldemort to say, "Luke, I am your father." That is, he'll take Star Wars over Harry Potter any day.