So I read this book for work, and I guess that gave it a homework-y feel which made reading it less fun, but overall the book makes some good points that generally come across as somewhat common-sense-ish.
My biggest complaint about the book is the use of contradictory examples. In the first chapter, which talks about how you really need to interview your market, and can't just intuit what the market wants they give a good example (Zipcar) of a company that did that very carefully and then go on to talk about how Avis was started when the founder got annoyed at the lack of an airport car rental place while traveling and how Disneyland was started based on some Disney intuitions into what was wrong with amusement parks.
I guess they weren't expecting people to pay attention or something, but it irritated me.
Anyhow, the best thing I can say about this book is I got to spend some work time reading a book, which was sort of nice.