I had actually bought a Nest but never installed it. I sold it on eBay when it was announced that Google was requiring people to use Google accounts with Nest products.
What I installed instead (myself) was an Ecobee 3+. I've been very happy with it. I have it set to run the fans 10 minutes of every hour to move air around a little bit. With a previous dumb thermostat, using the fan more often caused a noticeable spike in the electric bill. We live in a 1914 house with multiple levels and minimal air returns so there tends to be variations in temperature (top hot in summer, cool in winter; basement coldest in summer even with vents closed but exposed pipes are full of cold air, etc.) that aren't easily fixable.
Ecobee has started selling security cameras, which I haven't looked into. I really do like the idea of having a best-of-breed thermostat and I hope that Amazon doesn't buy them. I'm a little surprised that they haven't.
What I installed instead (myself) was an Ecobee 3+. I've been very happy with it. I have it set to run the fans 10 minutes of every hour to move air around a little bit. With a previous dumb thermostat, using the fan more often caused a noticeable spike in the electric bill. We live in a 1914 house with multiple levels and minimal air returns so there tends to be variations in temperature (top hot in summer, cool in winter; basement coldest in summer even with vents closed but exposed pipes are full of cold air, etc.) that aren't easily fixable.
Ecobee has started selling security cameras, which I haven't looked into. I really do like the idea of having a best-of-breed thermostat and I hope that Amazon doesn't buy them. I'm a little surprised that they haven't.