About the only justifiable complaint, mind, being that there were no real special effect zingers that weren't in the trailer. Everything else could have been predicted.
It was complicated without being complex.
You had dreams within dreams, and every single dream was a version of an inferior James Bond movie. There was almost no dreamstuff, even by Hollywood standards - the only thing out of place was one instance of a freight train coming down the street against the traffic. As to the mysteries of the unconscious, nothing; Freud lived in vain. One mildly discreditable repressed secret, but no monsters from the id, no dimly seen forms in the corner of your eye, no distractions from what was basically a caper movie. I should have gone to the anime festival.