I recently switched to the full AF line about a month ago, I'm glad I did. My corals look much better, colors are noticeably brighter, polyp extension has been better now than ever. I haven't noticed a huge increase of growth yet, but they're growing at the same rate, if not faster.
Like cyberdude said, I like how they make a program for you to follow. As you get used to the program and how your tank responds, you tweak the program for your own needs. I started at half dose of everything and pretty quickly increased as I needed.