I make the app for Homey so I hope so
The Homey app can select the watering mode, including “Instant” so it starts watering straight away. You can also define the Eco mode settings and get information such as flow rate.
LinkTap support is excellent and they will be improving the API this year to make it more responsive to alarm conditions, etc.
The battery life is really good. One of my valves is now two years old and still working with the original set of batteries. They have been out all year and still look as good as new.
I would recommend the G2 or G2S as that provides the extra information such as flow rate and volume of water used plus you get alarms if the water has been switched off or if the rate is too high indicating there is a leak or if the unit has fallen, etc.
The new G1S and G2S also have a button on the relay to turn the water flow on and off but that can be disabled via the LinkTap app if you desire.
The system has many option for when it should water, along with an option to skip the slot if there has been or will be enough rain (based on the local weather forecast).
Then by using the Homey app you can add extra sensors such as moisture sensors to trigger watering cycles. My favourite is a motion sensor to turn the sprinklers on when someone walks on the lawn
P.S. I don’t work for Linktap, I am just a very happy user.