Skillful graphics, but bad artistry. It was too clean. Think Star Trek vs. Bladerunner. It never felt like a real place to me.
Once you get past that, then you've got the story. Which was predictable. And the length? Holy cow, someone needs to hit that thing with a scalpel and take about an hour out.
Maybe I'd have a different opinion if I'd seen it in 3D, but I doubt it.