My initial order ended up being too large in the cup, but coordinating a local exchange with Steph was easy, and the new size fit perfectly! It is so nice to have a dressier nursing bra, but still easy to nurse in (no issue to "fold" the cups down out of the way.
I used the sizing recommendations for this bra and my measurement came to 36D. I find it too small in the cup I probably should have went up to a DD so I would say go up one size in this if you are busty. But the quality is amazing and I will still wear it.