The good: Excellent quality at a great price, and its digital with individual temperature setting for each warmer.
The bad: The front warmer seems to not warm as fast as the rear warmer. There is no setting to turn off so you have to disconnect it to turn it off.
This is my first tire warmer Set and so far they have been better than I expected. I’ve used them only once at grattan and they helped keep my tires ready for every session, and at a that price. So far, I 100% recommend these.