I'd have to disagree. I have used one for a while now, and I would NEVER go back!
They are really good for your skin, as they exfoliate it (scrub off dead cells) unlike a bar of soap.
As for the comments that a real man wouldn't use one, well..., thats up to you. I use a lot of crap that people wouldn't consider manly. But you know what? It works, and I look good for it. :Q