Full of fascinating premises and interesting 'out there' science. Ultimately, my own scientific knowledge isn't good enough to know whether or not the author was extrapolating wildly, but there was a lot of good stuff in here that seemed to make a great deal of sense.
One thing though that really grated on me was Peake's use of 'humorous' subheads throughout the book. Full of terrible puns and dubious jokes, they spoilt it for me somewhat!
Very absorbing. As a reader I was quickly pulled into Stephen Walker's life and wanting to know how he would move on from the violent experiences of his youth. However, I felt that the end was ultimately unsatisfying. That could be me: I like loose ends to be wrapped up, but I guess real life isn't like that and neither was this book.