Excellent for white noise- no gaps or annoying inconsistencies in the sound, just a full deep sound that will mask outside noises like traffic while you sleep. It appears to be a very nicely rebranded version of the old green Brookstone model that has served me well for over ten years. Can't speak to the baby-soothing sounds because I'm not a baby anymore. I'd take this over the slightly cheaper Marpac Dohm, due to the fuller and louder sound and the headphone output.
- Mr., Mike