I just had this model installed. It replaced a faulty Kohler faucet that was only SIX years old! The faulty model was K-780-VS and it is no longer available.  The problem with it was the hose that went to the faucet head. It developed a hole and leaked.  I believe this model uses the same hose!  I hope it lasts longer than six years. Or I won't be buying Kohler faucets any longer!