Just had a service call for a very small issue and the tech was great. Extremely professional, found and fixed the issue with my RO unit quickly and then went on to fully explain all the functions of my water softener. These are brand new units put in by my home builder and I've been very happy with their quality. But to know if you ever have an issue it will be resolved quickly makes it even better. Thank you Russ for the time you spent this morning helping me understand the Culligan products and services!