I had it for 3 days in which time I probably washed 2-3 plates and cups. There is already rust on it.  All my life I used stainless sinks.  I never even knew sinks can rust with such light use.  Water stain and losing shine I can understand but rusting after 3 days is just not acceptable.  I would return the product if it weren't so troublesome to uninstall this and install a new one.  Unless you are planning on leaving no dishes ever in the sink and wiping the sink completely dry, not even a little bit of moist on, after each use whether it's finding out a cup or washing hand, this won't work.