Advanced is hands down the best. I am in week 5 and will start a new thread when it's done to show what AN organics is all about. I have used pureblend pro and a few other things forever, but a friend used AN ph perfect and his crop was the best he ever had , so he talks me into trying the organic lineup ( because he knows our patients want organic ) and I hesitantly did , but now it was soooo worth the 3500$ (with good discount)