Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Story lacks excitment of other Le Carre books

I loved le Carre's spy novels and was expecting more of the same but this book has been a disappointment. It is very slow moving and hard to get any sympathy for the characters. It's taken me a week to get to chapter 5 (I usually read a book in a few days) and I'm not sure I'll make it to the end on this one unless it gets better soon.