Saw the Kudos to Lee Valley and reminded me to give Kudos to Kohler for their customer service. Purchased a Kohler kitchen faucet in 2011, last year it started to leak around the lever when shut off, contacted Kohler and they sent me a replacement cartridge which solved the problem until last week. It started to leak again. I called Kohler and explained what happened, the service rep looked up my previous warranty order (they use your phone number) and immediately said we will send you a complete new unit. No hesitation, so in about 2 1/2 weeks I should get the new unit. Can't complain about that service!