Heinlein creates a realistic society and social structure that makes several excellent points about our society today. The most memorable and important point to remember from this book, to me, is that the people who want to create laws that dictate morality are not asking for those laws for themselves because they feel like they can't control themselves if it isn't illegal, rather they want those laws to dictate how others should live their lives.
Spoilers: I was sad with the way it ended. Myc's "death" was so tragic!
The narrator did a fantastic job acting out the voices of different characters. The book was good, but the story was kind of boring. Perhaps I was expecting more science and less politics, but it was an interesting "libertarian" rendering.
The story is well written, and the narration is top notch. While some of the computer related references are dated, they still hold together with a little suspension of disbelief.
Nope, not in the 21st century. There could not be an intelligent computer with a vocal interface. There could not be penal colonies on the Moon. Penal colonies could not revolt. There couldn't be war of liberation. Colorado couldn't be bombed to dust. Nope, nope, nope.
The book is so good the audio doesn't get in the way...still humorous and still insightful of human behavior. James does better than good job of voicing the characters. Heinlein was always my favorite SF author (tied with Keith Laumer).