This is a silly, silly book. Make no mistake about that. If you can't stand dimwitted characters, talking bugs, deus ex machina out the wazoo and dry humor, you probably won't care for the book too much. However, if you've read Douglas Adams or Pratchett, then this book is probably something you want to check out.
The fourth wall in this novel is thin. When I say thin, imagine very old cheese cloth...eaten my moths....after someone has driven a truck through it. That's how thin we're talking about. The author addresses the reader directly all the time, and the characters puzzle over how contrived certain developments or other characters are in the course of their conversations. The author doesn't take the book, the characters or the world too seriously (or seriously at all, as it were), but that's kind of the point.
I did laugh while reading this, so mission accomplished. The book is short, and once things get going they just snowball to the final climactic finale, which unfortunately was lost due to a computer problem, but I think the summation of the event that the author provided captured the flavor of the missing chapter well.
It's worth a look if you need something quick and are not averse to a chuckle here and there.