Have heard it said that it works just as well for women as for men.
Not surprising when you consider that the clitoris and the penis are not so far removed from each other (physioligically speaking).
I know a couple of ladies that have used it and have said it enhanced their sexual pleasure no end (but it appears that women are as coy about using it as many men are).
To use it, from a man's point of view, is often considered an aknowledgment that he "can't get it up" otherwise.
I CAN get it up but I have used it and it's been brilliant (for ALL concerned).
The ladies I know that do "own up" to having used it say exactly the same, from their experiences.