That looks like the one the wife picked up; I never installed it, as I thought it poorly designed. It took huge force to separate the mounting plate from the guts, like you'd have to all but rip it off the wall every time the batteries need a change.
At the moment we don't have smart thermostats, now what we're home 24/7 it just doesn't seem useful. But the last house we did have one, it was nice. Turn the heat down when we were gone, during the week. Have it bump for when we first get up in the morning, maybe at 8pm, then let it drop by 9. Not a bad thing.
In the future I'll probably get one that is on the WiFi. As much as I don't like smart things, it would be nice to "check up" on the house when I'm not home.