I did not lose very fast at first...i was very sad. I thought this was just one more on my long list of weight loss failures... But... I have lost 175 lbs...For me, I had to get a fill every month for a year before I got to a point where i only had to go every 6 mo or so. Thats when i started losing faster than the first year.. took about 3 yrs... I had to keep in mind that it would probably take that long, as that is what i had heard and read before i had surgery