Love it!
My husband and I have had a Sleepmate sound maching for years (same machine for over 15 years) and we love it.  We bought two more to put in our kids rooms (ages 5 and 9 months).  The little one doesn't wake the 5 year old in the night and vice versa.  These machines are wonderful.  We also take them with us on trips to help everyone sleep better away from home.  It's a nice steady sound and doesn't sound "electronic" like some of the other types of noise machines.
Rating: 5 stars