When our Grid-16 stopped heating we were hoping that it would be a simple fix. We use it almost everyday. After a little troubleshooting we figured out that the element had burned out. After looking for replacement parts, eTundra had the best value after you compared the product and shipping costs.
The part arrived quickly. The only negative I can offer up is that it did not include instructions. That being said it was fairly straight forward to change. But it would have been handy to have a diagram included. I'd recommend taking a picture or two as you go to help you remember where the pieces fit. You may not need it but it is cheap insurance.
We have only been using it with the replacement element for a little over a week, so I can't speak to durability, but so far it has worked perfectly.