Hi Travellingman,
Welcome to the world of banders! I had mine fitted on 5th June and have lost 28lbs (12.5kg) so far....someone that saw me for the first time since the op said to me today "Blimey, where has the rest of you gone?".....I was grinning for a long time after that!
Look me up on MyFitnessPal.com, I am under...you guessed it Moulin85, it is an excellent application and a lot of people from this site are on there too.
Good luck and stay positive, it can be tough in the first few weeks but the pro's totally outweigh the cons!
Luv Sally x