I really like this thermostat. This is the 2nd one I have purchased. It connects easily and seems (so far) to work flawlessly. The only reason that I did not give it 5 stars is the fact that I can't copy a schedule from one stat to another. Other that that, this is a great thermostat.
I wanted a more expensive system--Trevor suggested this one. I am very pleased--the ability to run this through my phone is nice. I am older and have had problems setting up programs, but this was very easy. I am very happy and have two of these units.
The screen does not respond 80% of the time. I have 4 thermostats and they are all the same. Also adding the app was a very complicated and difficult process.