I had not used it yet for any big projects. Tried on a few spots on clothes and it took them right out. I have a washable rug that is too big to put in my wash machine. It was very dirty from my 2 dogs but wanted to wait till the end of the summer to wash it. I took it outside and sprayed it all over with the hover and let it sit for about 20 mins. I power washed it and then resprayed again just to make sure it came nice and clean. Gave it a real good power wash and now the rug looks brand new and no dark areas left from the dogs. Very pleased will buy it again.