Is in places unclear, unorganized, or lacks adequate support. Contains documentation problems. Fails to consistently interest the reader through content and style. Contains distracting mechanical errors. While organization is present, it is neither clear nor effective.
Sentences are frequently awkward, ambiguous, and marred by serious mechanical errors.
Evidence of careful proofreading is scanty or nonexistent. The whole piece, in fact, often gives the impression of having been conceived and written in haste. Lacks clarity, overall organization, and adequate support. Has major documentation problems. Fails to engage the reader through content and style.