I recently bought a Nest thermostat and love it so far. My mother-in-law is at my house during the day and she couldn't figure out how to work my old one but this one is perfect. It is wi-fi enabled, has a motion sensor and an excellent interface that is easy to use. It also programs itself based on how you set it and will set itself to away if it doesn't sense any motion for a period of time. I have used the iPhone app to bring it out of away mode and heat up the house several times as we were headed home and it works flawlessly. It is also nice to be able to adjust it from bed or flip on the fan from the kitchen when cooking. Highly recommended.
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