We have used it twice (2x a day for 4-6 weeks- a year apart) and it was helpful. Once at age 2.5 and once at 3.5. My DD has SPD and PDD_NOS. Her OT 'rented' it out to us and we switched CDs every week. Out of pocket cost was $50.
I was very happy with the results- she is a lot more tolerant of 'noise' and unexpected noises than she was, we also saw 'calmer' behaviors after most of the CDs. ...



