Great as long as you are using 110v or a transformer
This is the only one that I know of that doesn't have a digital loop but rather a constant fan.  They've been around forever and have stood the test of time.  The only reason my old one broke was that my wife plugged it into a 220v outlet in Europe and fried it.  Beware that these are not international and are 110v only.
Rating: 5 stars