Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hopelessly disappointed

As an avid reader of John Irving, I'd hoped to be a naysayer to the common concensus that this book is a disappointment. Unfortunately, I have to agree. Probably my biggest complaint is that from an author that usually creates such complex, three-dimensional characters, I felt next to nothing for any of the characters in The Fourth Hand. In fact, Otto may have been the most well-developed character - and he was around for the shortest period of time. I think the story had potential but it fell well below its mark.