Just picked some up.. Never tried SNS Phenibut but they have never let me down on any products since the old Methyl-drol XT.. A friend of mine told me something about 'old' phenibut vs. 'new' phenibut or something.. In that case I would have only ever done the 'old,' I bought some when it first came out and haven't felt the need to indulge since.. I am sure it will be SNS quality..