The guy from Clearwater Systems of Eastern Ohio was very nice. There was a lot to learn about the new system. My husband feels as though he could have used more time to learn how it all works. So we rate them with four and a half stars for service. It also was a big shock when we learned the price of the new system. We got an original Kinetico when they first came out. It lasted thirty years and was amazing. It cost us nine hundred dollars. The new one cost fifty-nine hundred dollars and was actually discounted from the sticker price of sixty-six hundred dollars because we were already customers who buy our salt from them. We weren't expecting such a big increase. That's the only reason we rate them four and a half stars instead of five for our total experience.