This is amazing! I have sciatica, Multiple Sclorosis, and Fibromyalgia and at the end of the day my muscles are hurting so bad I cant even sit still. I take this guy and just run it across my neck and legs and arms on low ( I cant use the high setting because it hurts me to badly because of my fibro) . This helps loosen up my harden muscles and brings my pain level back down to slightly bareable again. I use this daily!