Green Coffee Bean, Anyone?

So I heard from my sister about GCB extract and how she saw it on Dr.Oz.
She started it a month ago and has lost 20 pounds already. She looks great.
I'm once again the fat sister..
:grumble:

So I'm curious if any of you individuals have tried it? You're suppose to have the 100% pure kind with SVETOL. I got two bottles of it (except I forgot to get he 100% pure kind...) and I've been taking about 400-600mg a day. I'm also eating healthier but have been too hesitant to go to the workout room since it's in a new place. I've heard some rumors that the weight you lose is only about 70-80% actual fat, and 20-30% lean fat. Which wouldn't be good since that means you could be losing muscle.
But muscle can always be brought back.

Basically I'd love to hear opinions / experiences with the product!