Yes, I am one who swears by it. I may decide I like the ATF/mineral spirits mix, but doubt I will ever fully get rid of my Kroil, despite the large price difference. Kroil is great for many things; I use it on all of my stones for gunsmithing when they get loaded up with debris, it just raises the debris up so I can wipe it off clean, again. I have used it for a number of years for really stuck parts. I use it in the form of Witches Brew for barrel break in, and am about to start using plain Kroil for post-bore cleaning protection on all my firearms.