Fits really well. The wires do not dig into my ribs under my breasts. The wires might dig slightly into my sternum, but it's only noticeable in certain positions. The tops of the cups are not too loose or too tight--even if I thrust my chest out I don't get quadraboob. Right out of the box I can wear the band on its tightest hooks comfortably, though. I wonder if I should have gone up a band size.
The cups are slightly too big--they're not filled completely at the top. The straps attach to the bra too far to the side--they dig into the side of my armpit. The band can be fastened comfortably on the tightest hooks.
Fastening band on the loosest hooks, there is a noticeable gap between the top of the cup and my breast. Fastening on the tightest hooks (which I can do comfortably) the gap disappears slightly. Both the center gore and the cups at the side/under my arms feel itchy. I wish the center gore wasn't so wide--I think that would help. I also find the shape it gives my breasts to be a bit lumpy, but that might be because the cups are too big and wide.
On the plus side, the underwire feels very comfortable against my ribs under my breasts.
First time wearing it and fastening it on the loosest hooks is a bit too loose--middle hooks are good. The top band of the cups are tight--it digs in slightly. The wires dig into my ribs directly under my breasts (but this is a problem I have with pretty much every unpadded underwire bra). Center gore is flat against my chest, but I can't help feeling that the top of the cups and the wire chord (the distance directly from one wire end to the other), are both slightly too small, or just not the right shape for my breasts.