Yes. I have twice now.
The Lean Startup provides a blueprint for anyone starting a business - their own, or a business within an existing business. The blueprint is as useful from a tactical standpoint as it is in setting the mindset necessary for success in iterative product development. It forever changed the way I approach building businesses and creating value for customers. This was another book recommended by a mentor of mine as a top 5 must read, and it is most certainly one of my most recommended books to others in business.
Lean is not a new concept. It is not innovative. It has been around for decades. Like many of the "new" methodologies, this is repackaged practices thinly disguised under new names. "Build, measure, learn, pivot" is no different from "plan, do, check, act." Each should be customer focused. Each can and should be incrementally delivered.
I will give the author points for pivoting to repackaging project/product delivery to his customers for whom the old methodology/language didn't work.
I have enjoyed the intro and the definition but get bored quickly. Yes I did finish the book because I was trying to find a value for it but with no luck. I will difinetaly return it.