I'm 5'3", 26 years old, and a 32DDD - and this bra is awesome.  It's beautiful - you can't really tell from the pictures, but those circles on the straps (at the front) are gorgeously glittery, but not enormous and irritating.  You can still wear this under normal clothes.  I'd recommend not wearing it under light tight t-shirts (the color would obviously show through, but I'm specifically talking about the lace detailing being visible), but dark stuff is okay.

The support is divine, and it fits really well.  The cleavage is there, but subtle, so it's work appropriate.  This is literally my favorite bra ever.