I use it, I like it. a bottle lasts forever. don't scrub much with that stuff. I like it mostly for dead/dying barrels or ones that have been shot hard for hundreds and hundreds of rounds and really need a good cleaning.
you'll be happier all around if you stay on top of it with gentle chemicals from the get go but people who tell you don't have strong stuff in your arsenal are overreacting.
I'm pretty sure there is aluminum dust particles in the fluid suspension, which seems like an abrasive to me but perhaps I don't understand some finer point.