This wasn't a bad fit, just meh, not great, not horrible. There are extensions of the straps attached to the band that are uncomfortable, but I can see where structurally they help stabilize the bra. The cups were a bit too separate for my taste, giving my breasts a more separated appearance. The cups are moulded and really quite thick, definitely more than a Deco. Not bad, but could be better.
I ordered the Isabella because I was in desperate need of an ordinary (and black!) T-shirt bra and this one was for cheap on eBay. It turned out I misjudged my size (again...) and would need a 30H, as the 30GG have me a bit of a quad-boob. Not much, but in the end I decided not to compromise and sent the bra back.
Apart from the quad-boob problem, though, I was pleasantly surprised. The bra fit flawlessly everywhere else and the support, uplift and rounded side-shape were awesome. I've only owned two molded bras so far, but they were by no means as comfortable and soft as this one.
I tended to avoid molded bras up to now, thinking that they would just make my boobs look bigger, but I've changed my mind. If I find the Isabella in a larger size, I'm definitely ordering it again.
Fairly disappointed when this bra arrived in the mail. I now have 5 Rubypink bras and while they all seem to have wider cups and straps than would be ideal for my frame, they have all worked until this one. The straps are set too far apart for me and I don't fill the too wide of cups. It seems like it would fit a 30G better than a 30FF. Also, the moulded cups are just too thick for my preferences. A bit blah. Will be selling this one.