The brownish look of an oil rubbed bronze finish is a very popular complement especially to warm-toned design ensembles.  It is important, though, to realize that oil-rubbed bronze is a "live" finish -- meaning that its look changes as it interacts with the materials it contacts. Rubbed bronze door and cabinet knobs will show brighter, burnished areas from repeated skin contact.  Minerals in water can cause a rainbow of color interactions with oil-rubbed finishes -- and these are not deposits that can simply be cleaned off.

White lime deposits, of course, are especially visible on darker surfaces, which prompts vigorous cleaning -- often with cleaning agents that will change or destroy the finish rather than restoring it.  Careful reading of cleaning instructions for special finish hardware and faucets always specifies use of only non-abrasive cleaning, with only mild dishwashing detergent and clean water.  And even the best products rarely warrant specialty finishes against damage.

So be sure you want what you're buying with special finishes -- especially oil-rubbed finishes, especially where water is present.  SITK always recommends chrome or stainless steel as the least reactive, toughest hardware surfaces.                                         

If you must have special finish looks, consider non-"live" non-reactive ones specifically developed to stay looking the same over time -- or plan to enjoy rather than fight the natural changes that will happen in your "live" finish.