I purchased this faucet in 2013. I have had to replace the sprayer head 3 times due to severe leakage from the button that is pushed to change from a stream to spray and leakage from the spray volume regulator on the head.  I do have to say that Pfister has a wonderful warranty and replaced it immediately.  The customer service representatives did not have any problems replacing the head and they were extremely helpful.  I would buy a Pfister faucet again, however, not this particular faucet.