Just installed this faucet Friday evening after upgrading to granite counter tops in the kitchen.  I am a female engineer and was able to install it by myself except when tightening the two anchor screws on the backing plate that hold the faucet securely against the granite from the underside.  With only one person, the faucet will rotate as you tighten one screw at a time.  My arms are not long enough to manipulate a screw driver behind the double sinks and hold the faucet from the topside.  Had to have husband hold the faucet steady.  Other than that, it was not obvious that a flat head screw driver was required to pull out the spring loaded sprayer hose from it's recessed, hidden location within the faucet!  Would be nice to have a diagram showing this!  So far enjoying the hands free sensor especially after cracking eggs for breakfast and needing to wash my hands.