I was hoping this would give me a little more "oomph" than my yoga bras for higher impact activities while being cuter than the pretty boring sports bras I use for super high impact activities like running. It could be my body type, but the straps were too stretchy and long and the fit wound up showing more cleavage and lacking support. I had good coverage lower in the sports bra. I think if I went a size up, I might get better coverage over my cleavage, but the issue with support and strap length would be worse.
But...as I said, it could just be my body type. I'm short with large breasts and I often do have issues with shirts or swimsuit tops fitting properly. If I buy to fit around me, the support and coverage lack, but if I buy to fit my cup size, it's too big in the straps. I would highly recommend this bra if you are more average sized, though. It's SO cute and the fabric is super soft!