I bought this a couple years ago and drink DOUBLE or more of the amount of water I used to drink because this product takes the "funky taste" out of our well water.  I feel better since purchasing and using this product, my skin is better because of the amount of water I now drink AND the fact that it is good, clean, good for you water! I make sure to test my water and change the filter as needed.  Filter purchase is easy and the fact that you can do multiple filter purchases, get coupons, deals on pricing and home delivery makes this product even better.  Won't be without it!