This was an addition for my double pedal (on both plates). It really helped with marks form the pedal chain on my shoes. It also helped me in better positioning my feet when I play, which contributed to my speed and precision. This is an excellent upgrade for the pedal, and really worth the money. For some players it may take a while to get used to, but you don't have to do it consciously since the shoestop forces you to do it. In a while you'll forget it is even there.
The quality is good, but the black powder finish wears off from friction with the shoe tip. It does not, however, destroy your shoes as the chain does.