I bought this thinking that based on the price and that it was designed specifically for stainless steel, it had to be great. I spent about 20 minutes scrubbing one small area of dirty and slightly rusted stainless and it did nothing. So I figured, well maybe it's more of a polisher than a cleaner. So I spent about an hour buffing areas that were only dirty/dull... still not much success. Finally I tried using cheap household window cleaner and received better results as both a cleaner, polisher and remover of tiny rust particles.
While this one is definitely a dud, I'm sure there are many other better cleaners designed specifically for stainless steel on the market.