I might have rated it lower, but I don't feel strongly about books like this. It's just not what's helpful. I realize there are dangers in books that go off in weird directions and the importance of reliable scholarship. That said, a commentary should tell you things you did not already know. It should make the text weird. He has occasional insights, particularly about the graciousness of the law and social justice, but he seems a bit mushy on predestination and (more important to my mind) leaves the impression that Deuteronomy is rambling. I don't know how I feel about Jordan's 10 Cs outline, but at least it's unexpected.
So, thank you, I'll read Deuteronomy next time.