First 5 stars of the year!
I loved this book so much. I hadn't been so involved with a book in a while, but Andy Weir manages that wonderfully. You root for Mike so hard, his triumphs and losses feel incredibly personal. I loved how humor is ever-present throughout the book, even in the hardest moments, which are probably where you need it the most.
As for the reading itself, the first chapters were a bit more dense because they need you to get into the whole scientific/astronaut style of the story, but after that it gets better and BETTER. Seriously: the more you read, the less you want to close the book. I am absolutely ready to see the movie and to read anything else this author wants to write.