Having the ecobee3 for about a month now, I have no complaints. Within a week of use there was definitely a difference in comfort throughout my home. There was no more leaving cold to hot or vice versa when going up and down the stairs. This the main reason why we chose the ecobee3, the remote sensors. It truly gives it the title of the smarter thermostat and isn't a gimmick. The remote access and control is already a feature that is enough to pay this much for the ecobee3. It's always responsive and easy to navigate the interface. I also have Apple products with HomeKit as well as the Amazon Echo and they both work simultaneously to control the ecobee3 which makes the ability to control this thing a breeze where ever you are. Overall, it has been a great investment and to me, and looks better on the wall than the Nest. I have read where people have stated the touchscreen sometimes gave them issues, but I have not ran into any such issues with mine. I cant't wait for more remote sensors!