It really doesn't 'replace' any spotters. It's a great go to for those with less knowledge on what stain remover to use in what situation. Instead, you can rub in some Fels, Nike shuffle it, and then hit it with the wand in a few minutes and it will take out many stains, I use them just for simplicity, Took out Black perm. marker on light brown carpet in nothing flat. So whatever Bio Break with Citra solve doesn't take out, I rub some of this on it. Works pretty good. Helps newer techs provide great cleaning.