I did... it's cool... seems a bit mechanical to me (I am speaking in the context of entertainment, not weight-loss)... Some of the stuff looks a little unsafe. I think it would be hard to be a cameraman in this show, following the subject watching them screw up... I would want to be saying... "no man, don't buy those twinkies!"
I think it's an alright show. I watched it last week and it's mostly their background, with a bit of them struggling to do basics, and then it's at the end (it's a 6 month period) where it just tells you how much they lost -- not sure if it's current or not.