Amazing!! 5'7, 164lbs, 36DD, athletic build.. based on previous reviews, I purchased a 2XL and currently have it on the 2nd row of hooks, so I probably could've picked up an XL, but I'm very happy.
This covers my tummy completely. The back was very odd at first (it had a wonky bulge at my waist, right above my bum, but this relaxed after about 30 mins and is now smooth).
I'm absolutely loving this trainer!