The example dialog is often wooden. Most of the passages were strrewn with 'telling' and not good, narrative 'telling' but almost amateurish descriptions of character's thoughtsm, feelings and actions. Now these were not intended to illustrate writing mistakes. In a section on First Person, you'd see this awkward 'telling' writing sample. Again, the feeling is that the book was written in a rush. I'm sure that if Mr. Card had spent more time on his writing samples they would have shown better quality.
But apart from those two complaints, Character and Viewpoint's content is laudable. The book does belong in every writer's bookshelf. I didn't experience any 'ah ha' moments while reading it, as I have with other books on writing and I didn't have an overwhelming urge to go write immediately after finishing it. Instead the book put me in a contemplative mood where the strengths and the flaws of Mr. Card's book seemed to stand out in even sharper relief.