I bought this to replace a pretentious, all show-no performance, restaurant style sprayer I have in my kitchen but sadly could not reach the back of the kitchen sink to replace the current monstrosity.  So that's a job for a real plumber.  This sat in my house for almost two years and I finally decided to install it at my parents house where they also have an annoying, underperforming, though unpretentious, kitchen faucet.
Wow.  This one is amazing.  Absolutely wonderful in every way.  Easy to install, very stylish, great performance, and the spray function is so powerful it will peel paint off your walls.  I'm so jealous, because my "restaurant" style sprayer dispenses water with as much force and volume as my toddler's runny nose.
Buy this.