It is easy to read and full of things that sound very obvious in hindsight (but often the 'obvious' things are those things that are important).

I love that he emphasizes the right things like vision plus a scientific approach (hypothesis and innovation accounting).

It goes beyond agile & lean software development best practices and adds customer oriented business concepts on top so you get a great framework for product development.

If your aim is to deliver great software products and satisfy your customer then the approach he describes is the best way I can think of to achieve your goal.

disclaimer: I am currently building a product influenced by the lean startup movement: http://www.blossom.io