Although Propecia is a great product for most, I dont think all will benefit from it though. After all it is not the cure we all have been hoping for. This is not to say that it will not work for most. I have been on for two months and my hair has snapped back to surprising vitality- I have not had significant re-growth yet but it appears thicker and fuller than it has in at least a year. I was probably a Norwood 2.5 when I started, so I caught it early.
My hair was going downhill at a rapid pace and the Propecia seems to have turned that around. I also give allot of credit to the Xandrox 5% I use 2x a day as well.
Fortunately my hair responded well to everything I tryed from Nizoral to Crinagen and folligen to Lewenbergs crap. It is just responding a whole lot better to this stuff.
Bottom line I think it will work for most that don't have a real aggressive form of male pattern baldness.