They are VERY easy to keep clean. There are no tight spaces to hold dirt. I do not have them long enough to comment on the durability. The center caps are stainless and are mounted on the surface, so that makes it even easier to clean the rims. A phillips head screw driver and the cap come right off. As I said I do not even have them a month yet but the surfaces are smooth and wipe off or hose off very easily.