I testify to the high quality and potency of Oasis Mitra (Green Maeng Da), having tried the herbs of many internet and local companies down through the years. Another important issue is the amount of time it takes after ordering to actually get the product. Oasis must be shipping next day because the product gets to me quickly. And I really like the "point discount system" for return customers plus the frequent discounts offered through email. One other aspect that gains five stars is the good communication with the company via phone or email - well, better than good.