This book is Compulsively readable. Mark Watney was a far more pleasant narrator than the hard-to-like narrators of the past three books I have read, yet he still feels completely genuine. Sometimes it gets a bit sciencey, and I was unsure whether or not I should suspend my disbelief on the possibility of these events, but everything seems reasonable. There are lots of interesting shifts in narration, and my only problem with the book was that I wanted it to continue past its ending.