I bought this 2 weeks ago and had professional installed for us.  Soon I realized that it’s hard to find the middle point where the water would completely shout off - we have to waggled the handle a bit until the water stop dripping.  And then today I found out there was water underneath the sink.  After further investigation, we found there’s water leak out from the cold water side pipe.  Not sure is the product’s problem or the guy didn’t screw tie, but I’ll call him tomorrow.  Very frustrating!