Not having any forces experience I can't comment directly 'from the front line' of the UK military; but experience of the prevalent culture and working practices of another government-funded monolith - the NHS - makes me suspect that most of what 'Lions, Donkeys and Dinosaurs' has to say about our Army, Navy, Airforce and MoD in general is depressingly accurate.
Top-heavy leadership and ring-fencing of vested interests, 'jobs for the boys', misallocation of resources, hard-working and dedicated people making do with what's given rather than what's needed...unfortuately it's all too familar. The comparison could run for pages.
However, I do note in the news recently that the Commons Defense Committee has expressed 'serious concerns' - after 8 years and 800 Million pounds (!) - about the Nimrod MRA4 program. It has also recommended that the MoD 'look carefully' at the Joint Strike Fighter (which will, of course, not be ready when its aircraft carriers are) along with the M400M transport project - all of which feature prominantly in Mr Page's book.
Possibly all those letters to MPs which readers of 'Lions, Donkeys' were urged to write has had an effect after all..?
One can but hope.