I'd warrant that those low to moderate average effects are still well worth it -- I don't know if you actually deal with anxiety or alcoholism? Every tiny things can help and if it feels good -- that moment of clarity and that feeling you have control over your mind -- it's nice. And if the more you do it the more your brain gets good at it, it's a useful tool. Obviously not a panacea, but overall not bad advice to give. Besides, we live in a world of constant mindnumbing entertainment, advertisement and distractions. It's good to take a break from that. Maybe you should just not think of it as 'alternative medecine'.