I bought this about 6 months ago and have used it every day since.  Absolutely love the taste of the water.  It tastes so pure and refreshing.  I have tested my water at a level of 325.  After filtering th water and re-testing, the water is at 0.  After 6 months of use, the filter is still working great.  It’s measuring around 6 after all these months of use.  This is a Great product for anyone who drinks lots of water.  I have gotten rid of all my bottled water and it’s saved me a lot of money each month.  The water tastes better than any bottled water I’ve had.  This is a definite thumbs up for me and will give it a 5 out of five score.