I have been going since November 1. It's 30 minutes rotating a machine and what they call a recovery square. I haven't weighed in yet for january, but in December I had only lost 2 pounds but I had lost 5 inches. I am pretty muscular so the poundage doesn't surprise me, as you are toning muscle that you have. I am much more interested in losing the inches as I want to get down 2 sizes to pre-pregnancy size.
I joined when the joiner's fee was $65 - not sure what it is regularly and I pay monthly $29 plus whatever your state tax is.
And while my numbers aren't huge I can tell I have really toned my hips and butt so much that my pants are really getting baggy. My chest is getting much firmer and my shoulders are squaring out more. I am hoping at this month's weigh-in/measurement to see even better results than last month's.