I started using Amway about 34 years ago when I first moved out of my parents' house. (At the time I was also selling it). I have since gotten "out" of Amway (no longer selling it). I've continued to buy it, and for years wondered how effective it really was. Once when our washer needed to be repaired, the repairman mentioned that we must use Amway soap (we ALWAYS have). I asked him how he knew & he said because the drum & other components were in such clean condition. Also, when our son moved out of the house to live with another family (he's disabled), we noticed that his socks seemed gray after a few weeks compared to the ones we still had for him at our house. (They DON'T use Amway). So, my reasons for buying Amway have been confirmed several times, in different ways. I LOVE that you only need 1/4 cup per load. I buy the biggest box they sell (55#) & it will last me about 8-10 months & I do AT LEAST 7-8 loads a week. So I am VERY happy with my Amway detergent. Also, it doesn't "smell" as strongly as most other detergents do. I can't even stand to go down the detergent aisle in the grocery store for the strong smell! AND it's biodegradable, so we can drain our washer into our well to water the plants outside our home (we have "city" water inside the house) and we know it won't hurt ANYTHING! Since I have no problem planning ahead, it's not an inconvenience to order it. But we DO have to save up to buy it. In the long run, however, it is MUCH cheaper, I'm sure, than any other detergent!