It’s a deeply satisfying and a terrific read. The two (basic) layers of narrative is what works for the novel. The structure of the novel, the way it has been put down on paper - It makes you think and re-think what you just read a few sentences or pages back. There a lot of footnotes and references which add to the fun and makes you go back and forth once the narrative picks up. It’s a good patient read and it delivers a punch once the fun begins.
And one more thing, I generally re-read novels, but this novel, I wont be re-reading it any time soon.