I don't know about shaving legs, but why would any man want to shave his face with something that was designed by a marketing team to shave ladies legs and other bits? The idea behind a blade fused into a plastic cartridge was so that they could make a pritty pink one for the ladies and use the same machine to make a manly coloured one for the men.

In my opinion if you want to shave like a man, get yourself a straight razor. Of course a Double Edge razor is perfectly acceptable for the days when you don't feel quite so manly.