the science and drama is great. you're sorry the book ends but it's very fulfilling.
one problem shared with other audiobooks: dude narrator reading chick voices is unintentionally hilarious.
The narrator really got into the character with inflection and explanations. The writers self reflection formatting of journal log entries was really introspective and engaging because it made the central character very realistic.
Sometimes the math got a little dense for an audio book because you would have to rewind it to ensure you followed along but the math made it more engaging and realistic that the characters life depended more on his ability to problem solve and think than it did to simply push through like a lot of other survival novels do.