Installing it was easy. I opted not to use the optional backplate as it is mounted on a flat white wall.For the installation, I verified that I had the blue wire and connected it up. It worked fine, except it would not communicate with the internet. The wiring was done wrong. Not at the thermostat end but at the furnace end when they originally installed it. If it does not work, go check and make sure that the furnace was wired correctly too!Once installed, setting it up was a breeze. I did have a little trouble integrating it with Alexa because the instructions are not completely clear, (they kind of missed a step that is obvious once you do it but you do not think of it beforehand. Tech support was again super helpful.Documentation of features could be improved. They point out many of the features but when you start playing with the new thermostat you will realize that there are more. Pleaseant surprise.