I initially didn't see a need for a wifi thermostat, but the geofencing feature works well for me. (Thermostat upstairs, so only my daughter is fenced and she keeps a pretty random schedule).
Other than that, I see the lot of potential for the technology, but the software really needs some work. I doubt there is active software development going on.
Some examples: On the Geofence, you can't specify which users are fenced to each device. Filter usage is based on calendar clock, not fan runtime.
In summary, it works, but needs development. In addition, I'm not sure the it's worth the "internet of things" risks. The functionality could be performed using bluetooth or WifI direct without the risk.
This Thermostat Sucks. It won't even follow its own Schedule. Every morning I come in to work and I have to manually over ride your stupid thermostat. I have it set up to turn on at 6:15 am and turn off at 4:30 p.m. That's it. Not some complicated program. And every morning it just says its in away mode. I'm about 1 week from returning this stupid piece of junk and getting something else.
Works really well so far. I wish that the app and the thermostat were easier to set up, especially because the app asks for information about the thermostat that is hard to find.