I've rated this book 4 out of 5 because it's an easy read. Far easier then Prince 2. It's well laid out, easy to navigate and ultimately, I read this book and passed the MSP exam (with some additional work of course).
It's examples aren't great because the depth isn't there but they do provide a flavour of the real world.
It's a compulsory read for individuals taking the foundation/practitioner examination. It would also provide some very useful insights for Project Managers on how projects connect to programmes, alignments, capabilities v outcomes, business drivers etc to name a few.