This book is about how to run services, in any organisation, in any industry. It describes the basics, the core stuff, in realistic pragmatic terms. And it is pragmatically brief - we kept it to 50 paperback pages.
Execution always falls short of expectation. I'm still pondering my impressions of COBIT5 - more on that later - but one thing is clear: they haven't fully fixed the governance/management thing. [Update: I didn't get this right, see comments below]