After reading the first two books in the Robert Langdon series and enjoyed them a lot. In fact, to me they were page turns. I couldn't put them down. I even pasted them on to my sister after reading.
I did not have the same feeling about this book. Compared to the other two this one was just okay. It lacked the fast pace action of Angels and Demons or the Da Vinci code. I also found the description of place in DC did not have the detail as the other two books.
I don't think that I would be so quick to recommend this one as the other two.