Worked great for us.
We purchased a Kelvin for my father-in-law who went blind when he was 80. It was fairly easy to install; directions are thorough and clear. It took me a while to get the hang of programming it for various periods of the day, but once we got it programmed, we hardly ever touched it again for the rest of the 6 months he used it.<br /><br />My only complaint is that the voice which announces time/temp/thermostat setting was not loud enough for him to hear as he sat in his chair in the living room 12-15 feet from the thermostat. He was somewhat hard of hearing and just couldn't make out what it was saying even when the house was quiet.<br /><br />I'm just sorry I didn't buy it several years ago when he was still mobile. He would have been SO grateful to finally know what temperature his house was and what temp he was adjusting the thermostat to. I would probably still have had to do all the programming, but the everyday adjustments he would have handled well.
Rating: 5 stars