I only need a small capful since it's 2X concentrated, so the bottle is lasting way longer than my old detergent did. It lifted a set-in coffee stain off my work shirt on the first wash without any pretreating.
I was skeptical about a natural detergent, but this 2X concentrated formula got out a set-in coffee stain on my white tee that I'd basically given up on. A little goes a long way since it's concentrated, and my laundry room smells amazing afterward.