Product review (5 stars): Saved me from buying a new drier.
Worked as expected.  Returned an aging gas dryer with intermittent burner operation to normal operation.,  Found some how-to-do YouTube videos to fix my Kenmore dryer in of all places; Sears.com.  Troubleshoot down to a thermal intermittent gas valve coil.  These were the fix and a tremendous savings over purchasing the Sears part directly from Sears.