What I really love about this book is the idea the title gives you.
I've run several businesses. Some have failed, others have had reasonable but quiet success. The difference between them has been the ability to adjust and change for what the market is actually telling you. You might have a good idea, but ideas are worthless without execution, and this book tries to get you to hammer out the detail around strategic execution some more, and pushes you into the corner of needing to work out what to do next when that fails. It doesn't mean you will fail, but that you're always ready for when the change needs to come.
Weird thing is, this book is a great idea, but the execution is a bit lousy. There are a couple of highlights, and the dashboard tool is simple but useful if you've not done any business planning before. However, as others have pointed out the examples seem odd, the style rambles and overall it feels like it could have been so much more.
I suspect I'll come back to it and pick bits out from time to time, but is it a great business book classic? No. Is the idea behind it a great one? Yes. Shame really.