I watched one youtube video where a guy showed how to take down my old honeywell thermostat and install a new one and about halfway through the video I said, yeah I can do that and honestly the most difficult part was getting into the breaker box and flipping the breaker off.Turned off the breaker, and followed the directions from there, took a picture of the wire location, loosened the screws holding the wires (which were already labeled thankfully), removed the back plate, pulled the wires through the new plate and installed it with the screws that were used previously because they were a bit shorter, installed the wires how they were in the picture, snapped the new thermostat on and downloaded the app, flipped the breaker and programmed the wifi in and put my location in and it's been excellent since.It was honestly the easiest diy project I've ever done, the most difficult part for me was getting the breaker opened and that's only because I have long nails and rheumatoid arthritis. If I can install this after watching 3 minutes of a youtube video anyone can, don't let the project intimidate you because it's not nearly as difficult as you might think.