@nannybb over about 3 years, I’ve had probably at least 60 sessions. The relief is kind of addictive. Of course, because of SFN, the knots return. How quickly depends on my activities. I’m not a sedentary person. My legs have always been muscular, so those muscular calves and thighs are always tight. I have painful knots in my glutes and quads all the time. My upper body isn’t very strong, but using my arms doing my gardening keeps my shoulders and upper back tight with knots.
So …. I guess it’s just like an addiction! I love the relief, but it doesn’t last even two weeks usually.