I like super nanny and this is a nice book and an easy read. It looks nice, it's NOT hundreds of pages of dense writing in a tiny font, it looks inviting even when you are collapsing on the sofa in the evening after your toddler is in bed. I like her common sense, and it is useful to read this book as it will make you reflect on your child and your parenting, which is always very very good to do.
Don't expect this book alone(or ANY other book on the subject, for that matter!) to sort out your kids and family. However I do recommend it because sometimes when you are a parent you can loose self confidence in difficult times...and then it's when you need an outsider to remind you about what common sense suggests.