Bests & Worsts Reviews from Amazon

My comments regarding the nest can be summed up in the email that I wrote to Nest, detailing SOME of my issues with their product: "Dear Nest, I've had two of your thermostats for many months now, so I've gotten to know them. These are the reasons why I'm going to disconnect my Nest units and replace them with my old thermostats. Hopefully you can learn from my comments to make your thermostat better. It's VERY CLOSE to being great, but it needs work in several key areas. 1) The fan functionality is broken. It detects my wire, but not the fan, and that's fine, but then it disables the ability to use the fan. I know the fan works because Nest just uses a relay, and my system works with EVERY other thermostat I've plugged into it. My problem is that the Nest programming disables the ability to use the fan if it doesn't sense voltage, even though it works properly without said voltage. All I want is for Nest to activate its internal relay-- and it would work, but the programming is "too smart" for it's own good and disables something that would work perfectly fine, if it would just let me. I'm an electrical engineer, and I know how easy and basic a relay is to deal with, and I know that it doesn't require voltage on the line to work. There is nothing wrong with my wiring or my system, and yet Nest disables this feature because it doesn't sense voltage. This was fine in the winter, because the fan activates as the blower for the heater, but now in the summer, this is driving me insane. 2) There is no 'circulate' functionality. Yes, one of my Nests doesn't work with the fan, so this is sort of moot, but the other one does, so we'll just talk about that. My old thermostat allowed me to activate the fan in circulation mode, which turned it on for 10-15 minutes an hour. Why doesn't Nest allow me to do this basic function?! On top of that, my old thermostat allowed me to schedule this circulation, which was fantastic for the summertime. Again, Nest neither offers circulation OR the ability to schedule it. Why not?! 3) The auto-programming is ineffective. Over many months of using my Nest, it started getting less and less smart. For example, I heat my house more on the weekends, and I turn my thermostat WAY down during weekdays. One of the most heavily advertised features of the Nest is the ability to intelligently auto-program itself to such cyclical, predictive events. Over the months, Nest started heating the house on the weekdays, to temperatures I had set on the weekend. I NEVER set my thermostat to 70 on a tuesday mid-morning, for example, but all of a sudden it was heating to that because I had done so on a weekend. Not only was this wasteful, it completely goes in the face of what auto-programming is supposed to do. 4) There's no summer mode. I don't use AC, so I open my windows at night to cool my house during the summer. BUT THEN NEST TURNS ON THE HEAT. This is absolutely infuriating. The only way around this, as far as I can tell, is putting nest permanently in AWAY mode, which completely eliminates the point in having it at all, and then if I go to force the fan on, it determines that I'm no longer away, transmits that to the other thermostat, which then turns on the heat, even though I don't want any heat and it's summertime. So then I have to go and 'Away' that one as well. What a pain! So, I'm planning on disconnecting both of my Nests. I hope that the comments I've made help you to improve your product. Once edited, these comments will be included in my review of your product, as I believe others would gain from my trials and tribulations with the Nest thermostat. It's SO CLOSE to being great, but I just can't deal with it any longer. Thank you for your time." I went back to my old Honeywell touchscreen thermostats and I couldn't be happier. Nest just isn't ready for primetime.