It worked for me for about the first three months. Because they base your products on your lifestyle, I read that you should retake the quiz before your next order is submitted. I had some problems with dry skin, and I realized that originally I had put that my skin wasn't sensitive, when it was, so I went through it again, and got a new system. The new system didn't work well. I think I broke out more with the new system than I did before I was using anything.
It seemed to me like I couldn't win. If I used the stronger products like they originally suggested, my acne went away, but my skin was really really really dry. The new system for dry, sensitive skin, didn't clear my acne. Because the system changes for everyone, and depends on how correctly you answer the questions, it may work for others, but it didn't work out for me.
If you're interested, try it. You set how often you receive new product, so I'd set it to the latest date, until you decide. If you don't like it, cancel it right away. You have to call to cancel the order. I hate phone calls, it's a bit of a phobia for me, so this really proved a challenge.