I highly recommend Culligan Water Systems. We had our water filtration system installed about four years ago. It's great! We now get clean, good tasting water. I bought a water testing meter. I can see the difference when I test the water without the filter, and when the filter is on. There is a huge difference in the reading. In my opinion, it is an excellent investment. Also, the staff at Culligan was amazing. The customer service is excellent! I've been dealing with Joanne in customer service. She is super friendly and helpful. It's always a pleasant experience dealing with her. I was talking to her today and she got the technician to help me with changing the batteries on the system. He was very helpful. I truly appreciate their products and customer service.