It's hard to find information about eon outside the manufacturer website. But I decided to try it. You pay per "area" which come in Three sizes. Tiny Postcard size, larger envelope size, and maybe little bit bigger than that about 5x7 inches. They use cardboard templates to trace the template onto you with a white chalk that the machine sees. I did two twenty minute treatments with the largest size on main abdomen and paid in advanced for two more treatments. I cannot imagine how it's possible to treat the entire abdomen with Three treatments as the website says. Physically impossible even with the largest templates. Four would seem minimum. I was surprised how painful it is. Twenty minutes per area and I'm a fairly rugged 190 lb male that works out frequently, but twenty minutes is all I could handle. She places a couple laser blocker stickers over your belly button and areas that seem to be getting pink when the machine is circling the treatment area, wondering if this blocks its efficacy. What does it feel like? It's like a severe cramp and you feel the heat very deep despite the intense air blowing on you. It's worse in some spots. After the area is done pain subsides within 5 minutes. I left the facility and felt fine. Next day entire stomach felt strange but wasn't bad. I'm about five days removed now and have really been focusing on diet and excercise obviously to early to see any results but currently things are the same. Maybe a little tenderness but no evidence I had anything done. Their website says on a scale of 1-10 patients rated a 3 for pain. I've broken my ankle in two spots and that was a ten. This is definitely a 7, nowhere near a three. I Will report back results when I go back in twelve weeks and also after I do the other two treatments. The machine sounds like an air conditioner and is loud even when not running.