Instruct: Classify a given review as either positive or negative.
Query: "It isn't what I expected."

Bill Bryson has a comedic gift and adds just the right amount of embellishment to make the story fun and compelling, in the beginning. But, when he gave up on hiking the trail, the tone changed in the book, and I gave up on wanting to read it. It could have been so much more, but the fact is, it isn't. Left me sorely disappointed and the ironic part is "It isn't what I expected."