This is sort of a stale topic since the book analyzes the Bush Tax Plan as proposed in the 2000 Presidential Election. However, most of the ideas contained in the book are not stale at all, and a very succinct summary of tax policy as well as a recent history of tax policy in the U.S.
While I believe Krugman to be factually accurate, he is obviously liberal (I don't think that's a bad thing, but one must keep this in mind as they read this book). Krugman makes a lot of sense in many parts of this book, while in others his logic falls apart.
For example, in the same breathe as lambasting Bush's tax cuts which he deems reckless (with an impressive economic review), Krugman discusses how we should maintain the funding of social security as a priority because "It's the moral thing to do."
I feel that both sides need to make huge concessions as we promote balance. Krugman later elaborates how challenging the sustained funding of medicare will be as the Boomers retire.
It was fascinating to read this book today--12 years after the publication date. I have the hindsight of the great recession and other major historical events that shaped the post-publication years of this book. I felt like I was reading the pre-quel novel. It was fun.