It works
This stuff is basically comparable to battery acid. Even smells like it.  Found out the hard way when I first used it without rubber gloves.<br />It does do a pretty good job though at removing brake dust and whatever else was on the wheels I sprayed it on.<br />Doesn't do too well with grease until you use a plastic brush to scrub a little, but I'll definitely be buying more when I need to.
Rating: 5 stars