I recently bought this to replace a existing American stardard faucet.
   Have only had it installed a week or so; the pressure is back, the pull down sprayer pulls out and retracts with smoothness of ease . Installation was quick and easy, instructions were clear and easy to comprehend; I used the three hole base plate. 
Everything fell into place beautifully. 
  And as a bonus, my wife, absolutely loves the “ fingerprintless finish”