Great for babies and toddlers
I have used this every night for 4 years now, and I like it a lot better for my babies and toddlers than some of the white noise machines that are specifically marketed for that age group.  Some of the other ones have lullabies and the repetitiveness of the songs becomes very annoying.  This one makes a simple humming noise and effectively drowns out background noise so that my babies could nap in peace.  It would be even better if it had batteries so that it could be used when we travel or when the power goes out, but all in all, I'm satisfied with its performance.
Rating: 5 stars