I finished the book in two days. It’s great. You will especially enjoy it if you’re interested in detailed explanations of how stuff works on Mars (farming, orbital dynamics, making water, fixing and tinkering with all the tools and machinery, etc). There isn’t a lot of emotions involved in large sections of the book, so don’t expect it. This makes sudden jokes hit very hard though. There are emotional moments and the book will keep you at the edge of your seat.