That the service person that delivers salt for the water softener calls to ensure that you need salt. One thing that needs improvement it that my system has only been check once since we have had the system and there has not been any follow up calls. My system has a really bad smell to it when go to add salt
Water is top shelf. Not sure how it works, but its got a different taste and definitely pure quality to it. The installation was pretty shaky, upon the service technician(and being his first day), but overall it was a pretty good experience.