Works quite well, without requiring much rubbing or work at all.  I just dip jewelry in and pull it out.  Easy!  It smells as bad as other silver cleaners, but the container makes it easy to dip jewelry.  The stuff they sell in stores comes in a bottle you have to pour onto another container or onto a rag.  Such a mess and I really don't like this stuff on my skin.  I think this one is the way to go.