That moment when you wear a bra and it fits.  Not just 'oh, there's a little gap here but it's okay' fit.  Not the 'well, it feels better than my old bras' fit.  But that full "...oh my god, it's touching my sternum!  IT'S REALLY TOUCHING MY STERNUM!!! Look honey!! Look!!!".  The kind of squeeing excitement which baffles spouses.  This is that bra.  I'd love more. MANY more because for once, the underwire isn't digging for gold in my armpits or attempting to point the way north through the front of my shirt.  10/10, will wear again!