I have been using the Fisher Wallace Stimulator for about a month and a half now, twice daily. It is extremely user friendly and easy to operate. The staff is also great- readily available and quickly answers any questions you may have. I am starting to feel the insomnia improving, as well as mood. It is hard to tell if it is the Fisher Wallace Stimulator or medication I am on, but I am going to keep at it because it is so easy to use and preferable to medication! I especially like that it can be clipped to your clothes, allowing you to move about.