It is a good book, fun to read, although the middle part (the one with all the theory) drags a little bit. It has become a little dated (it’s 2021 now and skepticism around cloud computing is a little odd), but it pays a good homage to The Goal, whose readers may find the theory somehow repetitive. Despite all this, it’s a captivating story (I’ve read it in 5 days) and worth reading if you are not very familiar with DevOps and want to know what this is all about.