I ordered the ARO last week, and i must say it is amazing, it removes anything, you name it it will remove it lol And it does not have a strong odor to it either.
Poorboys Spray/Rinse is about the strongest wheel cleaner I would use and only on painted wheels. It truly needs no agitation, and P21S and DP do. It is quite strong and should only be used once every couple months as needed for a super cleaning. Heed directions exactly !