I am so pleased with this system. The pure water produced tastes better than any of the bottled delivery services we've tried. Installation was simple with the clear instructions included with the system. I had this thing mounted under the counter in 30-45 minutes. I was shocked to learn that most water filters send up to 4 gallons down the drain for each gallon of clean water they produce. This system doesn't even connect to the drain because it wastes no water. I searched almost a year for a system like this. I highly recommend this system to anyone that wants quality drinking water from an affordable, easy to install, zero waste water filter.