One critical review of this book called the author "smug and self important." That's probably true but it does not detract from the fact the book is well written, funny and very informative. Goldacre eloquently describes how we are mislead by the media and quacks. He even shows how experts make mistakes. You do not need to be a scientist or mathematician to enjoy this book.
Read it and you will be amazed. And you will be rightly sceptical of anything you read.