Honeywell pretty much has it down with wifi thermostats. I've installed 3 and am pleased with the overall performance. The setup can be a bit tricky but customer support is awesome.
Simple to setup, program and use. Very responsive to phone App . Don't even have to get up to turn on/off and change temperature. How much more can humans become lazy?!
So far it seems pretty easy to manage. I didn’t think I was going to want or need the online app but it’s actually really nice. I can even change the temperature without getting out of bed.