I got three Sensi thermostats. They were fairly easy to set up. Probably my own fumbling with the instructions made it take a little longer, but once I got the hang of it, it was a breeze. Also the online help is very useful and well documented. A few days after setup I had to exchange routers, but the switch over was not a big deal. The thermostats are performing as they should and it is very easy to monitor and change settings. These are not learning thermostats, therefore they should have less demand on your WiFi bandwidth.