works well when its set up and love the Alexa integration. One problem was that the thermostat was having trouble connecting to the router that was only 30 feet away. I moved the router 2 feet closer and it's working fine now.
I do warn the do it yourselfer that installing this in a home with only a 4 wire thermostat hook up takes additional skill. The instructions are good, but you must follow them closely, and you have to open your furnace and risk damage if you mess up. Professional installation is a good idea, really.
I own two Honeywell thermostats- a smart color and the T9. I like both. This T9 thermostat was installed in a second home. It requires minimal effort once you establish the blue wire exists. The T9 has been great for us and here is why... Our Master BR is downstairs but the main thermostat is upstairs which is cooler at night and warmer during the day. It used to get so hot downstairs because the heater would turn on because it’s degrees colder upstairs at night. The T9 allows you to install a sensor (or sensors) in another part of the house to monitor the temperature. I installed one sensor in my Master BR. The T9 now monitors the temperature in my Master BR at night instead of upstairs. I can regulate the heat so much better now! I now monitor both homes with my app and they both run smoothly on one app. This is a key buy for me!
You need a separate 24 volt power supply to use this with a baseboard hot water system. I found this and the wiring for it on the web. Other than that it’s a great product
I love it, I have the unit in the entryway hall, sensors in the Livingroom, master bedroom, grandkids room, and the backroom. I have the temperature set and it holds it to the occupied room. Living alone the room I'm in is held to temperature. On colder nights I'll ask alexa the room temp I'm in if my legs are cold alexa make the temperature whatever and its done. I have a voice setting ,alexa I'm cold, alexa responds put socks and a sweater on but for you I'll raise the temp 2 degrees and its done until bed time. One of my grandkids said alexa what is the Livingroom temperature I'm cold. She responded the temp and told her to puts socks and a sweater on. Enjoy it. I do.