After 16 years my original Kohler Coralais pullout single handle faucet developed a leak. I tried to repair but the top nut was seemingly welded in place so had to remove from the bottom and replace the unit instead of simply replacing the $15 cartridge. Since we had good luck with the first Coralais we choose the same model. It works but quality has definitely declined in 16 years. Instead of a metal braided extension hose it is 100% plastic. The water flow is also reduced which makes the spray less effective. Overall feel just seems lighter and not as strong. In hindsight, I should have looked at the next higher quality kohler pullout as it likely would have been more like our old Coralais. On me as I should have looked closer or showroomed it at one of the plumbing stores.