I was a little disappointed in this one. Much as I like the Langdon character and his skepticism, he was slightly too resistant for me in this book. Also, the whole notion of the symbol itself (what it is and what it represents) was a little too far-fetched for me also. So maybe I am just as resistant as Langdon.
Frankly, after Angels and Demons, it's going to be hard to "grab" me as hard. I think it's been all downhill from there for the Langdon stories.