It's light and a good shape. It fits really well at the sternum. The mesh and elastic across the top of the bust keeps things in place without cutting across.
Straps are thin but comfortable. The fabric felt a little itchy on first wear but fine on the second, and that's without washing. I didn't have any more than the usual red band marks at the end of the day.
I sized down to 34FF which is the smaller of my measurements in both cup and band. I could have even taken an F (I range from 34FF to 36G).
Oh, and it's a bit sexy too! So that's good.