I have the Supermarket version, the Restaurant Guide version and the regular one. I bought them on Amazon so I got special price for buying all three.
One of the things it says about breakfast cereal... Kellogg's Smart Start is a "not that!" - which really surprised me. Smart Start is supposedly a "heart healthy" cereal... the ETNT books shows that even FRUIT LOOPS has less sugar and calories! - WOW! - little things like that which surprise me.
They're very interesting books - I do recommend them to anyone who is interested but for whatever reason hasn't gotten them yet.