I picked this book up for my 7 year old who has learned about the Muppets with the Muppet movie. He also loves Christmas music, so I thought this would be a good addition. It is very cute. it is very "now" with things like "Five ringtones". I hope my son loves it, but he's a bit like Sam the Eagle and being a traditionalist. Maybe he'll be all "That's not how the song goes"! I don't know.
My only quibble is that it would be great if there was a recording of this song somewhere with the Muppets acting this out. Kids would then have that image in their head as they read the book. I think it would be more fun to read and remember the silliness of it than it being just a book. A look online and you basically see John Denver and the Muppets and more recently, the Muppets singing the still traditional 12 days of Christmas on Jimmy Fallon's show - just hammed up a bit. That's why I take away one star. Otherwise it's classic style of the Muppets.