I have gone thru my first box. It only took a YEAR! We have done some traveling and my wife will not use the country save detergent. I does get the clothes just as clean 95% of the time. That is fine with me. We still have Tide handy for the tough stains and dirt.
You can’t beat the price. This stuff is cheap compared to everything else. Each load uses about $0.10 of detergent. Tide is at least double that. I also like using powdered detergent. I feel that I am not buying any fillers. (water) Since I have three more boxes left, I am glad I like it.