I've tried several different styles of her shop-your-top bras. Never again. It's the same thing for me; no matter the specific style, I get zero real support.
Mind you, I look great in the bra standing still, just like the models of all sizes on air. But just walk from the bedroom to the kitchen and the bouncing and slingshot fit makes these the most unattractive, useless bras for me (I'm a DD cup size).
It defies logic to think a B cup can get the same support as a DD or higher cup, by just a letter size bra with no cup specificity or even strap adjustability. It took me a while to stop believing the hype.