For me, it was simple.  Neither fish nor fowl.  This could have been a great Spielberg movie.  This could have been a great Kubrick movie.  It is neither.  And it is worse than a mixture of the two.  Each artist’s style is, in conjunction, destructive to the other.  The intellectual debate that would have been Kubrick’s A.I. would have been disturbing and rich and relevant to our lives without A.I. Mechas in our lives.  Spielberg’s A.I. would have reminded us that the need for love is universal and that any sentient being will inevitably do all they can to achieve that connection.  The pudding that’s left is neither intellectually challenging or heart tugging.  It’s artificial and unintelligible.