Seriously, this is not one of Dan Brown's best book. I find it boring so far. It's not fast paced, and not that exciting, unlike Dan Brown's other books ( The Da Vinci Code and The Angels and Demons) But yeah, it's very well researched and entertaining!
A decent read. Didn't enjoy it as much as 'The Da Vinci Code' or 'Digital Fortress'. The plot isn't as compelling and fast-paced as some of his other books.