I would stay away from shavettes for your lady, they can be tricky enough on a face I can not imagine underarms and such. Between a straight and shavette the blades are not comparable IMHO. I have received worse cuts from a shavette error than any straight I have used. A straight is more forgiving I would say but I would not let my wife use one under her arms that would be a trick. Legs is no problem there is a video on Youtube about that. I would agree with these other gents DE razor, there are lots to choose from. Best of luck