This suit is true to size. the bra portion fits wonderfully, though not quite as supportive as an actual bra. It is probably best suited for even to FOB shapes. The tightness of the swimming suit material causes a small issue with my tall roots, however it's not enough to require changing sizes.
Generally I wear a 38G in panache. I knew I could get into a 36, but I prefer a looser band. I went down in band and cup size for swimwear because I find as soon as I get in the water everything stretches out. This fits great for swimwear and I'm excited to try it out!
The Anna is Panache's basic black tankini from last year, although widely available in 2012. The bra portion fits okay, although the cups run small (I measure 40" full bust, but a 39" while wearing this). Instead of a clasp, it fastens with two traditional hook and eyes, and three rows, which is nice - there's room to take the bra in without altering it. The body portion of this tankini, fits very tightly. I have a 40" full bust and a 29"-ish waist, so I would have thought it would fit around the middle, but it's entirely too tight. Will be returned.