I'm fond of this book - the cotton summer hat is particularly great if you're looking for something different and gorgeous.
One thing that keeps it from being a 5-star book for me, though, is that the author doesn't quite clarify what needle size system she's using. Thankfully, you can generally intuit the right size based on the recommended yarn. When she discusses needles, she indicates that there are different systems out there (metric, US, UK), she tells us that the UK system isn't in much use nowadays, and that most of the world (US excepted) uses the metric sizing system - which to me implies that, given this is an English book, she'd provide metric sizes - but she never actually says what we should be using. So when she says, e.g. #5 needles, is she talking US #5, or 5.0 mm?
Other than this, I'd highly recommend it. :)