I read the book and I have to say I enjoyed it quite a bit. It had an odd pacing to it. The first half was a bit of a lazy stroll, spending time getting to know the major players. This may sound off-putting, but as a fan of pulp I enjoyed learning what I could about the authors.
The plot itself, you don't really catch a good whiff of it until you are 130 pages in, and then it went a completely different direction than I expected. The author throws more pulp authors at you than you can shoot with a pair of nickel plated 45s, and while it feels a bit forced, in the end you roll with it and enjoy trying to figure out who the new guy is.
The final 100 pages are a blast. Each of the authors get a shining moment and things wrap up nicely, and the author does a nice job making villainous deaths graphic enough to make the original pulp authors blush with pride.
Marc