Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Weber is Back at the top of his form

Best Harrington Book to come out for a while, and definitely in the running for best ever in the series. There had been a little heaviness in the character development in the last few Harringtons. They are still great reads (Weber is the best SciFi author of our age), but not quite as likely to keep me up all night reading. Not so for this one. At All Costs has all the right stuff that made us love the series in the first place. Great action, great plot, and deeply moving from the beginning to the end.Can't wait to see the next one.