Zero – Counterproductive, horrible, painful.
♦ – Worthless, inane, dull.
♦♦ – Flawed, careless, dismissible.
♦♦♦ – Mediocre, unambitious, incomplete.
♦♦♦♦ – Complete, thoughtful, interesting.
♦♦♦♦♦ – Consummate, complex, enlightening.
*Note: Robert Lennon refrains from quantifying quality. His reviews do not contain ‘ratings’.