This is a great thermostat, I previously had the model one below this, the "non touchscreen" version, and it is excellent as well. This device and the app that goes with it work great for tracking daily usage for heating or cooling, it is adaptable to many system types, and easy to install. The one drawback I found is the lack of a battery backup. This means that you absolutely have to have the C-wire with your system, which for any moderately recent system is not a problem, it will most likely be there, but something I didn't think about until it happened was without the battery, the device, and app can't tell you when your system is offline! I had my furnace fail this winter, and it was a failure of a major relay in the air handler unit that kills power to the entire thing- and the only indication you get is your thermostat is offline. I used to travel a lot, and my previous Sensi thermostat had the battery in it- so when my furnace failed one winter in my old house, the app was able to actually tell me my furnace wasn't functioning! Luckily, I was in town but in the office, so I was able to come home and remedy the problem right away. In this unit, with the failure I had, it killed power to the thermostat, so remotely, I had no idea what was going on- is my furnace dead? Is my internet out? What is the temperature in my house?!?! So, you really don't have a clue- you might freak out only to find out there's an internet outage, and everything is running fine, or you may come home to frozen pipes and a water mess..... but I don't travel frequently for work anymore, so it's less of an issue, more of an annoyance- I suppose the silver lining of this cloud is I don't have to worry about changing batteries in my thermostat anymore, so that's a cost savings, and an annoyance savings! Does it balance out? Time will tell....Aside from that, installation is a breeze as long as you know what system you have in your home- enter that info in to the installation app, and it will take you step by step with illustration through each connection.Network connectivity has been flawless, and it works seamlessly with Alexa. The Sensi App is very easy to use, allows all settings to be configured or modified from your phone, wherever you happen to be! Usage tracking is very handy, and you receive monthly reports on your home with a breakdown for heating, cooling, and fan only run times.No, you can't set the backlight to stay on permanently, however, it is easy to see from across a room whether the system is heating, cooling, or idle by the display. While heating, it will be lit up orange, cooling will be blue, and the backlight will be off while idle. The backlight will light up again as soon as you touch the display, but I find I'm looking at the app when I want to know what the temp is. I don't even have to get up; and the first thing you see opening the app is the current temperature, and the color will indicate whether the system is running or idle- once again orange, blue, or gray background.The app is easy for setting schedules, operation, you can run in auto with a max temp for when the AC will kick on, and a min temp for when the heat will run, as well as a setting for fan circulation where you can adjust how much time the fan will run per hour during the day to just circulate air. There is also a setting for the cycle rate, which adjusts how tight the temperature holding tolerance is- slow, medium, fast, where slow allows for a wider temperature swing around setpoint; fast being the narrowest band around setpoint. Fast will make your system kick on and off more frequently, slow will see bigger temp swings, but less cycles per day.Operation has been flawless, zero issues with connectivity and Alexa integration. This is my second Sensi thermostat, and I would 10 out of 10 purchase one again.