This unit has nice automatic on / off features and quiet, even when it's set on High. Heats a 10 by 12 room quickly and consistently. We have another earlier model which has been performing well for almost 5 years (the length of the warranty.) So far, no issues with that one.
I have been using two of these for little over a month now, and have found them really effective in heating up and maintaining the temperature of medium sized bedrooms. I love the features, esp. Auto Climate so that I can have the temperature just right, not too toasty, not too cold - this was a must for me. Just one drawback (or rather an expected behavior), it heats the room to 4 degree Fahrenheit more than the set temperature, then cuts off, and then starts back on when the temperature comes down to 3 degree above the set temperature.