I put one in a few weeks ago. I need to build the video so I can install more.
My only complaint was the design where someone could easily break the bottom connection where the pull out spray tugs on that connection. They should of made that hose a foot longer.
My customer loves it.
The check valves I can see clogging/failing over time fairly easy. Then a cross connection exist if someone leaves the faucet handle on and shuts off through touch.
I got paid $300+ to install it so I'm not going to say I won't do it again....I will.