Hi Bexie,
I don't mind sharing my experiences at all. When I started on byetta 11 months ago my weight was 97.6 kilos. I am now 88.1kg, so have lost around 20lbs. This has been in fits and starts - I have found (as do many others on byetta) that the weight comes down steadily, then seems to stand still for a month or so, then starts to drop again, then stops again, and so on.
In achieving this I haven't been dieting in terms of eating less but I have switched to low-carb over the last 6 months. The switch didn't have any great impact on the weight loss - that just continued to progress steadily, and is still continuing.