Simply the wrong size for me. The gore is very tall and hurts my sternum. It may be better in a 30E, but I don't find it comfortable at all. It's fine for lounging in a hot tub, but I wouldn't do any heavy duty swimming in this one.
It's a nice-looking bikini which sadly is a bit too big in the cups for me and doesn't do anything for my breasts https://d28qt14g3opchh.cloudfront.net/smileys/icon_sad.gif" alt=":(" /> The underwire is a lot more comfortable and elastic than that of the tankini. The inner bra part feels like a Cleo George material.
Update: It works in the "bigger boobs part" of my cycle. https://d28qt14g3opchh.cloudfront.net/smileys/icon_wink.gif" alt=";)" /> So it's not generally too big - I use the Freya Bamboo Island if I want to go swimming in the smaller boobs part of my cycle.