Poor quality, only lasted 10 brews before it broke
"Broke after around 10 brews despite being careful to not flex it much and always left it loosely rolled between uses to prevent stress on materials. Now 2 years approx from purchase it is not heating anymore. Used it with an iSpindle and openHAB to control the heat from inside the brew, and the heat mat and a shelly/sonoff device to turn it on and off. Worked just not built to last."