DS #1 got it when he was young, and pretty much ignored it.
DD also was cold to it, and thus passed the book on in near mint condition to
DS #2 (16 months), who passionately loves it, despite being basically uninterested in the touch-this-feel-this aspect which is the book's selling point. He even treats it gently. (*) Toddlers, who can figure them.
I don't care for it myself; not really a fan of text or illustrations, and I really dislike the following verse: "Good morning little chick/Are you saying a nice hello/To the wiggily worms and flowers/Beneath the grass below?" Um, no, saying hello is not precisely what Little Chick is planning on doing to those worms.
Me, DS#1, DD: 2/5
DS#2: ∞ /5
(*) I have never seen a toddler treat *anything* gently before. It's uncanny.