Overall a nice book. I will definitely read it again when the need will arise.

It presents a lot of business cases and a few times makes gratuitous statements ("successful entrepreneurs had the foresight, the ability, and the tools to discover which plans were working brilliantly and which were misguided").

The text is more of a narrative than a clear explanation of the "lean startup" process (the useful advice is scattered all around the text). This could mean that you're not going to get all the value by reading the book only once and taking notes. But the point is well made and the suggestions are at least worth a try.

The references at the end are just great :)