I did WW forever and it is awesome. With this band though, I didnt want to feel like I was on a diet and with WW for me, I felt like I was. I keep track of my calories through out the day which is easy since the restriction is there. What also has helped was figuring out how much I burn on an average day. I'm between 1800 and 2100 depending on my activity. I know then that if I keep it 500-1000 calories under that, I'll lose about 1-2 pounds a week.