Recent Review: The initial face to face sales team was well informed, courteous, and super punctual. I had done a fair amount of online research before I made the appointment so I already had a good idea of the benefits. They answered my questions and I was ready to go. We made an appointment for installation two days later. Ken was the installer. Very efficient, friendly and knowledgeable. So, while the unit is fairly expensive, it is guaranteed for 10 years to be virtually maintenance-free. The money I will save on bottled water will more than pay for it in about 5 years. The water from the tap in every sink in my house is now drinkable and tastes as good or better than any bottled water I know of. No chlorine taste or smell! And, it apparently eliminates any further buildup in the pipes from hard water.