I bought this bra in a 30K even though I'm typically a 32JJ because I was told the band loosens up quickly. It does not, at least not for me (maybe if you're washing them in the washing machine or wearing it everyday). In the 30K, the band is definitely too tight and I spill out of the cups as the day goes on. I'll be ordering a 32K to see if that one fits any better.
I adore all the little details, but sadly the fit is all wrong on me. I usually wear a 30JJ, and even in a 30K it gives me quadboob. I'm fairly middle-of-the-road in terms of wide/narrow boobs, and the wires are quite wide on me. It's quite east/west, though the profile is better than the other unpadded CKs I've tried - it's a fair bit rounder, though there's still a hint of "upside-down 7". Good bra if you're bottom heavy with a wide root, I think.
Much, much prettier than pics show with super soft fabric. No spillover/quad boob. Straps are far apart and keep slipping off my shoulders. Underwires are wide but there's no poking.
* Note that I typically wear a 32 band in CK but HAD to buy this since on clearance at Brastop. Using extender since bra is brand new, but am able to fasten w/o.