I am currently reading this (checked it out from the library).
I believe I've read all his other major books. So far this is a reframing of most of his previous insights to illustrate common situations in which our irrationality causes us to make poor money choices.
If you've read his other books, a lot of it will sound familiar. For me, I actually enjoy reading similar content as a nice refresher.
In a nutshell, I'd say it's worth reading but is not a earth-shattering book by any means (especially if you've already read "Predictably Irrational"). I will comment again if the final 1/3 of the book changes this assessment.