Instruct: Classify a review into positive or negative sentiment.
Query: Underworld works well---as a DOORSTOP!

I'd been meaning to tackle one of Delillo's books for a while, hearing good things about him, one of the great modern American novelists, etc.I certainly don't pretend to be a writer, or even a literary critic, however, it would seem that if a novel doesn't move the reader then it's failed. I wish I could say that Underworld hadn't moved me, but it did--I was enraged at myself for wasting the time to finish all 800 odd pages.Sure there were overarching themes--the Cold War, how novel--and some character development but done with such self-consciousness I couldn't bring myself to care. Even Delillo's "complex" literary techniques are flat--superomniscient--PLEASE!So, what do you get after 800 pages of this? Nothing. Delillo's talent is as thin as Donald Trump's combover.