I have yet to be able to determine if it works or not. However, as the treatment is pain free, easy to use, and causes not side effects, I’m likely to use it for a longer period of time to determine if it works or not than I would be if it came with side effects or increased pain. I am, however, VERY concerned with the amount of e-waste being generated. Why does the device have to be thrown away, with a battery in it, after just 12 uses. Why is a new arm band needed with every refill. New carry pouch. Seems to me the product would be a lot more cost effective on both manufacturer and consumer aides AND more environmentally sound. There is ZERO reason a rechargeable battery can’t be used and refills controlled through the internet. Arm bands only need to be replaced Avery 4-6 refills and maybe a lot longer than that. Carey pouches shouldn’t be needed more often than twice a year. If your use of materials was more conservative, it would be more cost effective, and maybe insurance companies wouldn’t fight against coverage so hard.