I visited twice in a month. For the first treatment, they only did the double chin area, but they did it for a very long time and thoroughly. So I made an appointment without hesitation and went again. Maybe because it was the weekend, they did it less thoroughly than the first time. I was personally satisfied. My jaw line became quite clear and there was a dramatic effect. I think I'll have to go 4-5 times to get it, but then I'm worried because it's a waste of time and the cost difference isn't that big.