I purchased the two stage premium under counter water system three years ago. The filter system does the job I expected it to do. The only problem I have is that the faucet does not shutoff like it should. The water keeps running for about 5 seconds after you turn it off. Kind of wasteful.I would give the filter system 5 stars if not for the faucet issue.
Pros: Clean taste, Easy to install, Long lasting filter