Bought this bra as it was recommended for "fuller figures." Per /r/abrathatfits and this site's calculator I'm actually more like a 30F/FF (US 30G). This fits better than almost any others I've bought previously, though. Comfort becomes an issue because the underbust area tends to cut into my skin after a while - I think because the back rides up. Good support, but the lace trim on the upper edge isn't smooth enough to wear under anything thin. Low lift levels but would be higher were it sized correctly; quite a bit of projection. Probably good for someone FoB with a larger band size than me.
Got this to wear with a racerback dress, but the fit is miserable. Weirdly the other 34DD bras I've gotten from Frederick's have fit me reasonably well (compared to earlier bra experiences - I'm new to actually knowing my bra size), but the cup volume on this one is waaay smaller. I get unavoidable quadboob at the upper edges when I try to wear it, so... I don't. It's a decent bra, as best I can tell; just does not work for me at all.
While this isn't my correct size, it is still the best fit I have so far. The band runs small and stretchy, which is why I think it works for me, Every UK bra I have, the straps are too wide set and cut into my arm pits. This one doesn't. I can wear it all day without discomfort,
