Jim Butcher wrote a Spider-Man novel? I need to find this. If Harry Dresden's anything to go by, his Spider-Man's snark-meter must have been turned up to 11.
It's called The Darkest Hours
, and yeah, your assessment's pretty much on the mark. Note, though, that it's a direct sequel to J. Michael Straczynski's debut arc on The Amazing Spider-Man
, so it helps if you've read that comics story, though it's not essential.