Nice people, good product when it works. Absolutely the worst controller system. EVERY time I try to schedule or set -up my 16 zones, the system shuts me out and I have to either reboot the app or call the office for help. Spontaneous, non-programmed water cycles lead me baffled. Nothing more frustrating than having to look up your model number and serial number and then get recycled by the Hunter system when trying to figure it out on-line. Too much high-tech, too much frustration. Better to go to manual control vales that can be turned on and off at will.