I've purchased these water filters in the past, and I absolutely LOVE the taste of the water. Just as it's sold, it tastes CLEAN & PURE!!! The only complaint that I have, is that the units I've had in the past seemed to break easily... and of course, AFTER THE WARRANTY expires!!! I'm not sure how to go about exchanging them for new units, and I'm at the point where I'm just ready to toss them. I will call customer service to inquiry about this. I started not to purchase anymore of these units, but I just love the way the water tastes, so I figured I'd give it one final shot. You will enjoy the taste of this water. I still buy bottled water too, but the amount of bottles have been cut down drastically.