I live in the L.A. area, where much of the water supply is reclaimed. It doesn't taste great, and you never know what chemicals you're imbibing. I used to use a reverse osmosis filtration system, but that strips away beneficial minerals from the water. I discovered PureEffect six months ago when we moved to a new home, and I will never switch to a different system. The installation was fairly easy, and the water tastes so good! It tastes better than the reverse osmosis system I was using before, and it keeps the beneficial minerals that occur naturally in the water. I would recommend PureEffect to anyone.