The initial product worked fine for about 6 months. Then when the filter was changed, it leaked continuously despite repeated cycling of the faucet as recommended. The issue is that if a tiny particle gets lodged in either of the faucets and it doesn't dislodge on it's own, which ours didn't, you have to replace the entire faucet vs. a simple cleaning. 
Good news is Insinkerator replaced the faucet, our plumber installed it a few months ago and so far the new faucet only leaks occasionally and cycling has cleared it each time.