Pros: Kids love it and Mom & Dad do, too!
Cons: You might not want to turn it off when your baby nods off!
We discovered the baby lullaby albums out there when we had our daughter...but since listening to the music from Twinkle Twinkle Little Rock Star, I wouldn't buy anything else! The musicians are amazing, the titles so diverse -- if you can't find your favorite band covered, you can suggest that they cover it next! And the company is green -- it's only available digitally, unless you want to buy a cd on demand through Amazon. I highly recommend you check them out!