Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrid

This book is a gigantic waste of time. The plot is nothing particularly new, with relatively few themes. The themes it does have it repeats again, and again, and again, beating you over the head with it. You constantly find yourself wondering "Haven't I read this before", only to realize that the same idea had been 2 chapters earlier.The characters are all wooden, and completely one dimensional. Their obsessions remain their obsessions throughout, regardless of how the plot moves forward.There is much better Asimov out there. This has to be amongst his worst.