I was so desperate for a cute, in fashion, trendy, strappy bikini that I took a big leap on getting a 30GG in this bikini when I normally wear a 28HH.
I am so glad I did! This is such a cute bikini top and so many of my large-chested friends could not believe that I managed to find something so cute and also in our sizes (mostly).
Despite my choice (and success) in sizing, don't think that the top runs large; material used in bathers is generally more stretchy and thus, a bit more forgiving than most bra materials. When I wear my top, it definitely covers less that it does on the model (as you'd imagine based on the sizing discrepency) but it's not indecent and I definitely don't feel like I'm in any danger of a stray tit flopping out unannounced if i accidentally move too fast.
I also love how quickly it dries (thanks to less fabric), although the downside is that it's very noticeable if you get cold...
In conclusion, would highly recommend and would love to see more bikini options in these sorts of styles.