I've been using it for over a year. Both the liquid and the nuts. I switched to the liquid when I got an HE washer. Otherwise, it would be cheaper to stick to the nuts. It doesn't smell or have any chemicals and yet it works. It is also so convenient to take with you if you travel or go to the laundromat. Just a tiny bottle or a bag of nuts. If you work out the cost, it doesn't cost any extra to use it, and you could save even more buying the economy size.