Product review (5 stars): Nice replacement part & straightforward DIY job
Was able to determine only my heater element had gone bad using a multimeter and the "For Technicians Only" troubleshooting instruction manual hidden behind the dryer's control panel (a pleasant surprise to find that gem!).  Just be sure to unplug your dryer before opening up any panels.  There's live 220V exposed inside, which could be deadly if not unplugged from your wall outlet.  Double check you've unplugged!!

Once I found the heater element installation instructions online via some Google and YouTube searching, this cheap, USA-manufactured heater element was relatively easy to install.  With the bottom kick panel of my dryer opened up, I also had the opportunity to shopvac out the surprisingly large amount of built-up lint on the inside of the dryer, especially on the dryer floor and on the exterior of the heater element box.  Some of the lint had been blackened by the heat.  Talk about a fire hazard.  Scary!

Between troubleshooting to determine why my dryer would tumble but not heat, researching the part number I needed, then ordering and installing the part, I probably spent a few hours over the course of a week. We line-dryed all our clothes in our basement while the dryer was down for repair.  An inconvenience for our family, yes, but we thought it was worth the effort involved to save the $200+ it would have probably cost to hire a repair technician and purchase an overpriced part from him.  For that price, I could have bought another working dryer on Craiglist.  But why throw away and buy another dryer when you can fix it with a little effort?!  Oh, I forgot, that's the new American way.  :(

I've had this replacement element installed for a couple months now without any issues.  Recommended part!

And yes, you can do this, too!  At least give it a good try before calling the repair tech.