So far, so good. I started using the product yesterday. I followed the instructions: shaved my legs, started on the lowest setting, and flashed the light. It was painless. When I finished, I turned the number to 5 to test my upper thigh. I didn’t feel anything again. I then turned it up to 9 and tried another few spots and only felt a slight tingle. Now I wish I would have started at a higher number. However, follow the instructions for the first time and then move the number up to your pain tolerance. I will update my progress in 8 weeks to see if it eradicates these hairy legs.