I ordered a L and M as I was unsure how it would fit me, I have a small chest but large ribcage and prefer to breathe.
I tried on the M, could not get the zipper up, it was quite the struggle against the elastic, then the L was also no easy task but after a bit of bra wrestling I got it up. And it looks amazing very pretty, shoulder straps not too tight nice and elastic, band below is tight but doable for exercising, zipper up top a little itchy, hope with every next wear that putting it on will get easier.
I do have to say that the sizing robot is absolutely wrong with my recommendation! I may be tall and a certain weight, but a S would have been impossible! I am never a Small, rather a Large everywhere I go.
anyways, so 10/10 for style, 8/10 for support when jumping, 2/10 for putting on the bra (perhaps a little hook or piece of fabric at the bottom would help?).