Do read the whole review (that is not just the usual cliched command to do so), and I will gladly link to any response by Acemoglu and Robinson. Here is Diamond’s bottom line:
My overall assessment of the authors’ argument is that inclusive institutions, while not the overwhelming determinant of prosperity that they claim, are an important factor. Perhaps they provide 50 percent of the explanation for national differences in prosperity. That’s enough to establish such institutions as one of the major forces in the modern world. Why Nations Fail offers an excellent way for any interested reader to learn about them and their consequences. Whereas most writing by academic economists is incomprehensible to the lay public, Acemoglu and Robinson have written this book so that it can be understood and enjoyed by all of us who aren’t economists.
Review from Marginal Revolution