It's a great exfoliator, but it dries my skin out terribly and occasionally causes breakouts, even (and sometimes especially) if I moisturize afterward. It's a very good spot treatment though. But my main preference for it is as a shampoo. :)
Literally nothing else has cleared up my acne so effectively and consistently. It's so simple, I just soak a cotton ball and rub it all over my face in the morning and before I go to bed, and though I still have a lot of hyperpigmentation, I have zero active pimples right now!