Ive been on it for about 3 years. It definitely slowed down the loss and did a good job at maintaining, hair probably got a little thicker too. But I have been taking only .5mg of the drug for all these years, and I have finally hit the point of limp-dick. I am 24, healthy, and in good physical shape. I tried endens zinc treatment. The first time it worked like a charm, the second time(now) its not doing sh*t. I'm just going to reduce my dosage to 1/4 of a pill (.25mg) per day, and then slowly get off. Its not worth losing my dick over.
I have started applying rogaine to my hairline, hopefully that lessens the shedding that is to ensue from quitting finasteride.