I've lost 33 lbs since the start of June. I did 2.5, 5, and have been on 7.5 ever since. Actually I was massively affected with the 2.5 and wish I'd stayed on that.
What I do to make it cheaper and hopefully easier to come off it is to take it every 9th day and I wrench a 5th dose out, so one pen lasts me six weeks. That brings it down to about £30 per week instead of £45, thank god.
One thing I've found is how patient I've become with losing weight. I've never been on a diet for this long. I've very rarely gone up even a tiny notch, either staying the same or going down a tiny bit each time I weigh myself. But my attitude has completely changed. I just think, oh well, it'll come off next time, or I might not reach that goal this month, but I will next month. It's been incredible for me - I would always feel so low when I put on weight or stayed the same and that's completely gone.
And no wine or other alcohol in that time, too - apart from when I was pregnant or with small children, I've never spent such a long time without a drink.
I'm now half an ounce away from being 12 stone something - I'm so thrilled about that.