As I have only read the book and I am yet to see the film I can't comment on the cinematography or how well paced the film is, I found the book to be quite touching. I thought it had a good balance between Holmes' detachment and his buried emotions. Also, I agree with a point made earlier in the thread that I feel Sherlock would want to go down fighting, and that is something I think the book addresses quite well. It articulates Holmes' unique sense of loss in regard to outliving his loved ones and his own feelings of inadequacy at his failing mind; in both intellect and memory. Overall, I'd say even if you have seen the film, the book is worth a read!