There is a definite improvement in the quality of the water.
The person who delivers the tanks to our house is named Guillermo and he is very polite and with the deliveries.
I have been a customer since the mid-1990's. We bought a reverse osmosis unit that has provided the necessary filtering our water for drinking and cooking. Culligan has always been synonomous with quality products and services.
So far our machine is realitivly new but techs are always pleasant and answers all my questions.
My only complaint is I feel there service call ate rather high for just a check up.