If all 'plumb-hers' were this helpful, women would be springing leaks left and right! This standing cunnilingus position makes the receiver feel confident and in control. Moreover, the slightest adjustment on her part (squatting further, tilting, leaning forward, etc.) translates to different pressure and clitoral stimulation that's tailors perfectly to her needs.
The couple positions themselves as they would in Eve's Ecstasy, with the exception that she's facing toward her partner, not away. This pose is a tad easier for her to maintain and gives her a chance to feast her eyes on her lover’s body. Allowing the giver’s head to hover just over the bed edge gives them lots of mobility to pleasure their lover. However, the partners ought to negotiate their movements carefully, so as to avoid the giver straining their neck.