I've had this faucet for over two years. The sprayer and valve still work great. Installation was actually easier than previous units I have installed - the pigtails were longer and weren't as close to each other, giving more room to work. My father-in-law insists I installed it "backwards," but I fail to see that either pulling forward for hot or pushing back for hot make the action any more natural than the other. I didn't give it 5 stars simply because the soap pump stopped pumping fairly quickly. So when we want soapy water, we lift it out of the hole and drizzle some liquid dish shop into the sink.