I've used other enzyme products in past years, but really like this one. It leaves no stain on my off-white carpeting in bedroom (which is my rescue dog's main target area), and no odor. I'm using a blacklight to find her pee spots so I can attack them. Thankfully she is consistent with solid gifts and uses the pads, but just can't get her to use one of the many pads for peeing. Thank you .....