Product review (1 stars): Everything was fine, but when we started using this detergent the ...
I had the opposite experience of a five-star reviewer.  Everything was fine, but when  we started using this detergent the dishes were dirtier every day. And it wasn't just film: it was leaving food on the dishes.  As soon as we changed back to the brand we usually get, things were fine again.  It's weird. Before this, I would have said that soap is soap, who cares about the brand.  Now I know.