This. One of the most consistent and powerful performance improver is the Placebo effect itself, it’s rather hard to beat. So whether AG works, or it is just placebo and feels lke it works: does that matter?
Just for clarity: I don’t use it and don’t plan to because of the price. But I also do live by the credo: “give me a thousand placebos, I will take them alll!”. The mind is our most powerful tool.