Product review (5 stars): So far...so good.  Dry clothes again!  It took less than 3 minutes to install.
I was reluctant to buy this only because I wasn't 100% sure it was the failed part, but I fould a way to narrow it down.  I don't have any of the testing devices that some sites suggest, however with a household item I was 99% sure it was the broken part.  I unplugged the dryer...Don't forget this part.  Then I took off the back panel.  I located the 3 or 4 thermostats in the dryer (as well as the heating element.)  I wanted to be sure that it wasn't the thermostats, so here is how I confirmed that they were still ok.  I took a flashlight apart and used the bulb, a battery and a paperclip.  I then tested the bulb by bending the paperclip into a "C" shape to be able to touch one end of the paperclip to the negative (flat) side of the battery, and then touched the bottom of the flashlight bulb to the top of the batter (the positive side), and then the other end of the paperclip to the side of the flashlight bulb.  It will light up with a dull glow (since you are likely using one battery when the flashlight usually uses 2).  I then knew the bulb worked.  I did the same technique with the thermostat.  I unplugged the wires from either end of the thermostat, and this time put the postive side of the battery right on one prong of the thermostat and the bulb bottom on the other prong.  I then put one end of the paperclip on the bottom of the battery and the other end on the side of the bulb.  If the thermostat is good, it should have that same dull glow you saw when testing the bulb.  If not, you MAY have a bad thermostat.  I repeated for all thermostats, and all worked, so it pointed me to the heating element.  I did remove the element and inspect it, but there was nothing evident that I could see broken.  Once I got this part, I replaced it (literally 2 screws and 2 wire terminals to remove) and I was up and running in 3 minutes.  Hot air and all.  Thanks!