I use Murad and it has improved my skin very much. It's not completely clear yet, but has considerably improved my once explosive, very frustrating blemishes that I had all over my face. It has cleared my forehead and cheeks very well. My only problem now is around my jaw and chin, but even now I am seeing improvements. I also suffer from post-acne marks and I am using Murad's pigment lightening gel from which I am noticing results.
Murad uses salicylic acid which is much easier on your skin than Proactive, which uses benzyl peroxide. Along with Murad, I have also started taking Fish Oil, which I believe has aided in Murad's success. (You can read about fish oil on this site).
If you are like me and have seemed to have tried everything with no avail, I would suggest giving Murad a try. So far, it is shaping up to be my acne miracle!
I would be interested in knowing your success if you do decide to pursue Murad. Good luck!