I just put a Nest into our home a couple of weekends ago. Install was a snap, it is very very cool. I'm not sure if it will save us too much energy as I was a real miser with my programmable thermostat (and had it programmed on an aggressive 7 day schedule) but there's no doubt that the Nest is FAR easier to use and both my wife and I can control the temperature from our phones.
The way I look at it, even if it uses a little more energy I will probably be more comfortable in my own home as it continues learning when you make temperature changes.
It was the new AirWave feature for AC that finally pushed me over the edge to buy this thing and I'm glad I did.
The only risk is that the internal lithium ion battery is not user replaceable so eventually the Nest will need to be swapped with either a new unit or one with a new battery. At least they warranty it for 5 full years.
The way I look at it, even if it uses a little more energy I will probably be more comfortable in my own home as it continues learning when you make temperature changes.
It was the new AirWave feature for AC that finally pushed me over the edge to buy this thing and I'm glad I did.
The only risk is that the internal lithium ion battery is not user replaceable so eventually the Nest will need to be swapped with either a new unit or one with a new battery. At least they warranty it for 5 full years.