9 looks fantastic. Everything is so crisp and clear that there were certain objects that looked real and sometimes I thought that the characters could have been claymation, they were so tangible. Yet they move very fluidly. The character designs, both for the heroes and the beasties, are a treat to watch and examine. The sound design is also great.
The characters that are supposed to be likable are, but 1 is a bit too stereotypical in his characterization. The twins are a hoot. And the most badass character is the only female character (Why is 6 afraid of 7? Because 7 will KICK YOUR ASS).
Most of 9 is an exciting adventure, but the real meat of it is a slight disappointment. For all the originality in the look of everything, the reason for the apocalypse is the same old thing, and the scenes explaining it are unintentionally amusing. I was more pleased with the answer to the major question the viewer has throughout the movie: Why were these creatures made? Why are they alive? What is their purpose? I thought it was a nice idea, although it then led to a rather strange ending. There were many questions inherent in the premise that I thought the movie would explore that it didn't, although they were touched on a little.
It's visually spectacular and very entertaining, but I wish the story were a little more satisfying. Regardless, it's very cool and worth seeing.