Product review (4 stars): It works.
This is a case where it works or it doesn't.  I've had it in my Kenmore dryer for over 3 months and It works fine for me.  I haven't had a problem yet.

Addition: I had it a little over a year and half before it went out and I had to order another one. Because of this I did lower the rating by one star, because I think it should last longer than that.