I have had this faucet 4 months and I despise it!!!!!!  It is almost impossible to completely turn off.  One must be exactly in the middle for it to completely stop running/dripping.  Many times you must turn it on again or release the sprayer for it to completely turn off.  Our old cheap faucet was more reliable when turning off completely without needing to stand over it and check to ensure there were not remaining dribbles.