I freakin loved this book. For a guy who was left behind on a desolate planet with virtually no chance of survival he definitely had a good sense of humor. I don't think anyone else would have made it as long as Mark Watney did. He had a very special set of skills lol just like the guy in the Taken movies only different skills. If he wasn't a botanist and an engineer he would never have made it as far as he did. I would have died day one. I would never have made it up to space but whatever. The only thing that was odd was that he never lost hope or became depressed for more than a few minutes and that was only when he had a mechanical problem. He never got down because he missed his family or his friends or because he was in a situation where he should have by all means inevitable died. 
 This book was thoroughly entertaining and I even laughed out loud at some points. It was really great. More like 4 1/2 stars than 4. Definitely read this book.