I received these mid-June (today is October 1st) but they have only been installed and (one side) in use for about 3 months. They are only used for washing hands and brushing teeth. Only one of them is used daily but both seem to be discoloring. I am extremely disappointed since the reviews all seemed great. The faucets looked great at the beginnign but are now discoloring and getting weird darks spots on them as well. I've tried to remove them with gentle cleaner as well as Mr. Clean Magic Eraser and nothing seems to work.