It's been a big help to my health and overall life. If I never started OMAD, I think I'd be stuck with all the weight I had. It really depends on the person though. Some people don't always follow the diet properly, and for those people they end up quitting fairly fast. I got a friend of mine to try it recently, but she gave up fast.
For me though, I've lost a considerable amount of weight since starting, now weighing 120lbs exactly. It was tough at first, but now it's part of my lifestyle.