It had the cheapest price in Ansan and I went to the place where the event was held. I did it twice in total, the first time was on my knees, armpits and calves, and the second time was on my arms, armpits and calves. I don't know about other places, but... I only felt thorough 2 out of 10 times. It felt like they gave me something roughly, and I accepted it with the mindset that something cheap was expensive. After 10 sessions, 3-4 thin armpit hairs, a few fine hairs, and a few strands of calf hair. After 5 sessions, I can't feel any difference in my arms.