Great system- easy to setup and control.
The app makes setting times for stations a breeze- and much simpler than many units I've had to battle with awkward controls on the unit.
The only issue I've had is the distance, which is limited to about 10m. This is likely a limitation of bluetooth though. It'd be great for future versions of the unit to have the option of using WiFi to connect to the device to increase the range.
as a RETIC serviceman of some thirty years these are not good if you havent got the app to set them. Yes you can turn them on manually but thats all you can do. No LCD display means you must have the app on your smart phone to set .them or even check the settings,,cant recommend