I have found the device really helpful. I have been using it as suggested and it does seem to relieve the symptoms.
I still have discomfort but the muscle in my leg seems less tight and the soreness in my heel seems to feel less raw.
I haven’t needed to do the stretching exercises as often as I was doing before which hadn’t really helped much.
I started with the really painful heel a good three months ago but have only been to the Doctor once. It has been frustrating as I like to walk for exercise. I had to stop for a couple of weeks but I’m walking reasonable distances now. I am always aware of my heel. I am just waiting for the day when it feels normal again.
I hope this feedback is helpful,