Let me get out of the way that this is the original, unadulterated Chicka Chicka Boom Boom. I guess that now there are songs and toys and alternate versions of the book, and they might be amazing. But I am too nostalgic for this particular version to purchase anything different for my child.
My husband does not get why I love this book so much. "It's just an alphabet book," he says. I am choosing to remain blind to that statement so I can remain in love with him (just kidding, love!). But what has always appealed to me about Chicka Chicka Boom Boom is the rhythm. Something about it is so addictive and lulling. I still love reading it or reciting it to my son, and on nights when my husband isn't home in time for bedtime we usually read this one (or Goodnight Moon, which also has a rhythm I love).
The boog seems to like it just fine, although I think the real appeal for him is the fact that the board book is big enough for him to hold and turn the pages (and too big for him to eat, which is what he mostly likes to do with books).
Also, unrelated cute book story: whenever we go to the pediatrician, they give us a board book and encourage me to read to my baby (they have no idea). This most recent time, the pediatrician passed the book to me and Boog started kicking his legs, grinning, and shrieking with excitement. Yes, that is my son. :)