Once the app is set up it's pretty easy to program. LCD screen isn't visible at any distance. I haven't set ours up to work with Alexa, which I assume is what's necessary to get the app to control the thermostat when away from home and not connected to the same wifi network.
The picture shown here with lots of data in addition to the current temperature is not configurable via the app. Very disappointing after using a Ring thermostat.
I didn't think I would use the app as much as I have, In the morning I can turn up the thermostat before I get up. If I need to adjust it I just have to reach for my phone. I really like that I can adjust it away from home.