Bias toward old Keynesianism and against Chicago school aside, Krugman writes a useful summary on the state of macroeconomics here. It'd help anyone who wants to know the difference between saltwater and freshwater schools as well who's who in the discipline.
My take is here, and for sure I don't take hostile perspective to the freshwater school the way Krugman did. Nonetheless, one thing I agree with Krugman: his opinion on the use of math in the profession that prefers beauty over truth. But it just reinforces my intention to learn more (gasp!) math. A heroically tall order for me indeed, but I just see no other way.
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