Hey Melissa, although I am a newbie (sleeved on Jan 25th) I DO feel like my sleeve is successful because without it I would be eating TONS more calories and continue gaining weight. It causes restriction, reminds me to eat mindfully, CHEW and actually enjoy my food, feel full from 2-4oz of food and that's why I give it a 10! I learned what head hunger is and how it controlled me and now I can enjoy the smell of food without feeling hungry! I love it I don't regret a thing and so far it's been good, hope I helped.