I just tried this Cerra water pitcher and the family loves it. The water tastes better than the water from our expensive RO system. The water even makes the coffee taste better. We added the PH+ cartridge to the RO system thinking that it would increase the PH and add minerals to the filtered water but that didn't happen. Once I got the PH testing drops I found that the RO water was more acidic than my tap water. Now we will take the RO water and then later run it through the Cerra water picture. This way we get the maximum removal of metals and fluoride and then add the benefits of the Cerra water pitcher.