I use the word "blurry" in combination with entertaining because the movie was so fast paced with so many subtle clues being given out during the race that some of the puzzle-solving whodunnit mentality just leaks away. I like Tom Hanks and I would probably watch him just sit around babbling because he is one of the most talented actors. He carried the movie with his portrayal of Langdon while the others (with the possible exception of Ewan McGregor) seemed only to work as convenient plot devices.
For fans of Da Vinci Code or general bashing of the Catholic church, some joy will come from the philosophical issues that are explored including the role of dogma, tradition over modernism, and science as the antithesis of religion.