I have been a happy Rachio customer in two homes and two states now! I recently installed a Gen 2 16(?) Zone controller. The setup it replaced in my home included a wired Rain Sensor. When I activated the sensor after wiring up, I got constant notifications of sensor on, sensor off.
I have since deactivated it, however don't feel that even using my PWS as a replacement is acceptable as a solution. It should just work. I have cleaned the sensor and know it works as it did with the setup this home came with.