cefaly.com

The sticky pads are not sticking. Even on first use and cleaning the forehead skin, they fall very easily.

The app needs a major retooling. Once it's been connected to your phone, you shouldn't have to put in the code again every time you have a migraine! Not only do some people get auras, the print is so tiny, and the phone screen is so bright that it is horrible to have to put in that number when you're undergoing a migraine already. The device itself is fine but again, controlling it during the migraine on the app to stop the rise and then to start it up again, etc. is really difficult. Also, if it's up too high, there is no way to reduce the stim to a lower setting.

Shipping was fast

Electrodes work fine but are unfairly expensive.

Device stops working after about 10 minutes in. I have to turn off + on and then pair the device again which is really inconvenient during a migraine attack