I don't remember the writing or the plot being particularly special. Interesting and adequate and good, but not outstanding. What I liked about it was the technical details of just exactly what you'd need to check if you were going to verify such a claim; and to what lengths someone would need to go in order to successfully perpetrate such a hoax.

Unfortunately, a lot of the suspense of the book revolves around the mystery of whether it's a hoax or not, and I've now spoiled that for you.