I am a 36G now that I am nursing, and I had a very difficult time finding a nursing bra that was supportive, comfortable, and easy to open and close.  This bra is perfect.  What I like about the bra:
-very easy to open and close with one hand
-cup drops away completely so baby has good breast access.  There is a support band underneath the breast that keeps everything "in place"
-has a very comfortable feeling fabric, straps and band stay in place
-is well constructed with solid hooks in the back and a clever hook for the cup
-is well sized for my large breasts.  Nothing overflows, is pinched, is squished, etc.
-looks great under clothes.  Has a profile more like a "regular" bra so that I can wear most all my shirts, regardless of neckline, and my bra does not show.

I really love this bra and would recommend it without reservation.