Dunno, but I really liked it when I read it. Admittedly that was before we saw everybody and their dog reading it and so hadn't heard any of the hype at the time.
There's quite a few basic factual errors in it totallydisregarding the main theme of the book. Just the journeys, description of the Louvre, the fact that he has an albino driving and so forth that it's quite entertaining to discuss it.
Not sure where all the passion came from though, was it a full moon?