I have been using this product twice daily for the past two weeks, so I feel in can give an interim review.
My skin has been just absolutely unmanageable for the past couple of weeks, probably a combination of a new climate and product experimentation. I developed all kinds of blackheads all over my jaw (where I never break out) and my forehead was a mess. I typically avoid "harsh" products and had considered AHA's to be too harsh for my skin, but after reading so many good reviews I had to try this product.
This is great. My forehead has cleared up considerably (although my jaw hasn't *yet*) and my skin just has better tone overall. At first I found the lotion to be too heavy, but I think my skin has adapted because it seems to absorb more quickly and hydrates well. My only real problems with this product are the added fragrance and the fact that it's a small size.
By the way, if anyone has solved their blackhead problem, I'd love to hear how! I have mostly non-inflammed acne and it just won't go away.
UPDATE: Well, I strayed from this product to try the Neutrogena Healthy Skin Anti-Wrinkle cream, and now my skin is back to thinking this is too heavy. I don't use it in the morning anymore because it leaves my face feeling greasy, but I still use it at night and I still think it's making a positive difference for my skin.
UPDATE: I discontinued use because the fragrance in this product was creating problems for me. Too bad; I liked it otherwise.