I bought this because I hate, hate, HATE having weird little bumps on my back from the plastic adjusters on a standard bra.  This does the trick for the most part, and it's quite comfortable.  In my opinion, the reviewers who are complaining of the sports bra style "uni-boob" effect are exaggerating, but they are not totally wrong.  I think it's quite a bit better than most sports bras, but obviously does not provide the definition of an under wire.  It's not right for every situation but for most of my day-to-day clothes it's fine.

I do wish they would sell them singly or in packages of two beige ones, instead of only in packages with a beige and a black.  You can never have too many beige ones but really you only need one or two black ones.