Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worthy successor to Huxley

Nancy Kress's BEGGARS IN SPAIN, is, IMO, the best SF novel of its kind since BRAVE NEW WORLD. Certainly it's one of the most thoughtful to tackle the subject of DNA manipulation in humans in many years. Her eye for story + character is wonderful, as well as for the large & small details of her future world. I'd recommend this SF novel to people who don't usually like the genre. She covers the subject matter much more thoroughly & realistically than the film GATTACA, which owes more than a little to the sibling-rivalry theme in this book.