We bought the whole series (mom, dad, boy, girl, but haven't found the family one yet) and I've found all of them cute. They do attempt to engage a wide variety of ages. Personally I bought them for bathroom reading and I think its a perfect spot for these books! Light, cute, and kind of interesting!

I must say my eight year old son was taken instantly because he some how opened the book right to a section titled, "How to annoy your sister or brother."