Has anyone ever used the Rogaine Foam?

I have heard of women using it on their eyebrows to fill in sparse hairs and I know it works well for that, so I am sure it works well all over the head as well!

My brother has known a few guys who have used it. The conversation came up and I suggested he use rogaine or something jokingly because he was complaining about his hair falling out. He told me that he could, but then he would have to use it for the rest of his life or at least until he didn't care if all of his hair started falling out, and he went bald. So, I guess it does work, but once you start you have to continue to use it or when you stop more hair than innitially will fall out.