Oh my. This bra is the first to ever 100% fit me. Normally I consider a looser band or a cup wrinkle a fair price to pay if everything else fits. The Sarah Plunge makes all of my "nearly fits" suddenly pale! It helps that it is aesthetically pleasing, too.
I found it very comfortable, but towards the end of the day the straps started to dig in. It's pretty stretchy, but I bought it used, and it is snug enough on the smallest hook. The material is also a tad itchy. But I am so pleased with this bra!
Later edit: After the initial glory of having a bra that actually fits (!) wore off, I noticed that I dislike the shape of this one. It makes the breasts appear somewhat angular.
It's a very good bra. They only problem for me is that the underwire on the sides poke me because the cups are a bit too narrow. I don't remember it doing that when I initially bought it a year and a half ago. But that was when I was new to well-fitting bras, and it's possible that it just felt like it fit perfectly because it fit well relative to what I was using at the time. The other possibility is weight gain or something, since I have gained a bit of weight since buying the thing.
The fabric is very comfortable - it's how I realized that non-molded bras can actually be awesome. The fabric is very thing, but strong. It's non-itchy for me. The pattern on the lace is symmetrical, and really quite nice looking.
I wanted to love this bra, I really did. It's very comfortable, the fabric is silky and thin. It feels like you're wearing nothing at all, other than a snug band. My problem is the type of bra--I just can't do non-molded bras. My boobs look like crazy torpedoes and I can't wear this bra out. After walking around the house in it a couple times, I decided it just wasn't for me. I'd love to have it in a molded cup, though. It's really one of my most comfortable bras.