I had a Nest in my old house; loved it. So I went on Costco to buy another, and saw that these were cheaper. You get what you pay for. The device seems to work, just like my old brick Honeywell. But getting it set up on the app is a nightmare. Thermostat says it’s installed and registered, but app still wants to install a device. Their tech support is worthless. 10 min on hold, then 25 min with L1, then transfer to L2, who hung up on me after 45 min on hold.