NO spoilers ahead!
When you say a book is a 'page-turner', this book is the book that instantly comes to mind. I read it in two days because I simply. Could. Not. Stop. Reading. It amazed me, it entertained me, it did everything a book is supposed to do and more. I really loved the visual style of the pages, the characters are endearing and distinct, the tone changes when necessary and really makes the dialogue stand out in each scene.
The worldbuilding is also amazing. The authors really drew me into the world and made Illuminae's universe feel three-dimensional without overwhelming us with pages and pages of backstory. The characters are also standout parts of the world- despite the format of the story making character/tone writing slightly difficult, the authors made each character stand out and stick with me.
the plot was amazing. the ending was surprising while not being unpredictable, and it gave me chills. All in all, Illuminae is an incredible book that I absolutely recommend.