I installed this at the cabin a few weeks ago and it has already saved me from frozen pipes when the furnace went out. It was easy to install and set up. Seems accurate. The screen shows the temp but you need to touch it to see other info. The app is very handy. It would be nice if it said something besides heating when there is a problem. It’s nice to turn up the heat when I’m in my way to the cabin and have it nice and warm upon my arrival.