(No spoilers here)
Generally I very much enjoyed it. Many, many fantastic scenes. There is one rather unfortunate plot inconsistency, and some sections were dramatically underplayed (sections that actually have a massive impact on the entire story, and you almost need to know the novels to get their significance, but I guess that’s a reward for die-hard fans), but other than that, I have to say I am very happy with the final chapter.
More when more people have seen it!