I saw AI from the Video store and although I usually like his films here is one I would not see again.
If you see films for special effects, this would be a good choice. But, if you want to go away from a movie with a good feeling, even though it may not have had the happiest of endings, I would not see this one.
Overall, the story starts out with a Pinnocchio like story, and goes rapidly downhill to the point where about 2/3rds of the way through you give up hope that the film can have a happy ending.