I am not a fan of first person POV in the best of times, and the way Weir uses it is super choppy. I did this. I did that. Something happened. The closer I got to the end, the more I found myself skipping lines at a time.
That said… great book. Great premise along with an almost unbelievably intelligent and lucky protag. It follows the pattern set up in The Martian while also reminding me of Delta-V. Impossible mission with problem after problem solved by this super genius school teacher. Great stuff. And the ending was spot on. Probably not what you were expecting because, you know, reality has rules… but I enjoyed it.
Definitely recommend it for anyone into spaceships and space physics and space and feeling dumb. If you liked The Martian, Delta-V, or Providence, this book is for you.