Interested in your review...
In comparison to everything else that I've used to clean the crazy brembo dust (meguairs, Adam's, poor boys) this is the best product and looks cool while it's working (turns purple).
I'll directly compare it to Poor Boys, since that product worked wonders on my stock matte vapor hellcat wheels. Now that I have these aftermarket Rohana's, Poor Boys advises that you don't use it because of it being acid based. So, I made the Iron X investment and jumped on the hype train.
Iron X is Ph balanced and not acid based like Poor Boys, which should be safe for aftermarket wheels. My initial impression, the spray nozzle is MUCH better than poor boys. You can control the angle and output, which helps with getting the product deep in back of the wheel wells. YES, it turns brake dust purple, which then bleeds onto your driveway. Don't let this stuff dry on your concrete. I let it sit on the wheels for about 10 minutes while I'm cleaning the rest of the car and sprayed it off with a power washer. Rim is completely clean on the first application. However, I needed about 2 applications because I neglected my wheels...
It isn't just for your wheels either, I sprayed my cat head badge, rock guards, front/rear bumpers, even the exhaust tips. Whatever has iron contamination turns purple. Spray it all off afterwards.
Tl;Dr - I recommend it! It's kind of pricey, at over $30 for 1000ml, but it's worth it. Especially for you guys with aftermarket wheels. If you have stock wheels, Poor Boys will suffice.
Oh yea, did I mention it smells like death? Stunk up my entire garage and I cleaned the wheels outside!