I received a sample of this product free with an order of nappies and used it for the first time yesterday. I was very happy with its performance, there was lots of bubbles in the washing machine and the nappies came up clean and sweet-smelling at 40 degrees.
However, I'm not sure I can find any difference between this and the eco-friendly non-bio laundry liquid I already use.
Ultimately, I found this product to be high quality and very good, but I probably won't buy it again.